Normally by this stage in a console generation's lifespan, we'd have at least one eye trained on the consoles around the corner. Not so this time. Nope, this time there are just too many compelling reasons why the PS3 and Xbox 360 (we're not including the Wii in this particular debate) should hang around for several more years at the least. We've jotted down the ten we think are most salient.

1) Modern Consoles Evolve

Avatars+REVOLUTIONISED+our+Xbox+experience+(hence,+the+'New+Xbox+Experience'),+while+PlayTV+means+you+need+never+miss+an+episode+of+'Tom+Selleck's+Moustache+A-Go-Go'+again!

Remember the (not so) good old days when you bought a console and you pretty much knew what it could do from the outset? The PS2, for instance, could play music, DVD movies and games… and that was about it. Sure, later in its life you could get a network adapter to take it online, and it had all sorts of peripherals (guns, microphones, guitars) that helped evolve what it was capable of, but really, the system's functionality didn't change a great deal from picking it up on the store shelf to retiring it to the back of the cupboard.Fast forward to the PS3 and Xbox 360 – systems that are permanently net-connected and that have decent storage capabilities (unless you own the Xbox 360 Arcade, in which case – go buy a 120GB HDD for it now) – and it's a completely different story. Think about how these systems have changed and are continuing to change. Since the PS3 launched, for instance, its multimedia functionality has become a whole lot more flexible – it now supports far more video formats than it originally did. Its online service has also improved drastically, with revamped friends lists, redesigned Store interfaces and other changes, while all sorts of other things have been added over time – the trophy system, the ability to play PSone games downloaded from the PlayStation Store, upscaling PSone games, PS2 games and DVD videos, XMB functionality, and so on. And then there are services that have been introduced, like VidZone – streaming music video clips on demand, and, which turns your PS3 into a Personal Video Recorder.As for the Xbox 360, well we've seen regular updates to the system's front end since its inception. 1080p video output was added, the Marketplace got its own blade, Windows Live Messenger functionality was integrated in, and then we had the 'New Xbox Experience' which was a major dashboard overhaul, introducing avatars and the ability to install games to HDD, as well as a new GUI. Plus, while the system may not play Blu-ray discs, it has been trying to keep up in terms of SD and HD video content. 1080p streaming has now launched in a number of territories including Australia, while the U.S. has had a decent video marketplace for ages. Throw in Facebook, Twitter and Last.fm integration and the system's functionality is almost unrecognisable.

2) Higher Development Costs Means Safer Games

Woeful+licensed+games+can+simply+be+ignored+now,+but+what+if+they+were+all+that+the+eye+could+see?

It already costs a fair sack of cash to make a blockbuster title for PS3 or Xbox 360. The number of man hours that goes into the creation of something like GTA IV, Modern Warfare 2 or Uncharted 2 is insane, and total development costs can run from millions to tens of millions. And that's before you even start marketing and manufacturing it. Development costs have been steadily rising since the industry's inception, but with each new console generation it typically jumps, as all sorts of research is required to get up to speed on the new hardware, while with each new level of visual fidelity expected, asset creation takes longer and costs more. Generational jumps tend to represent significant changes, after all. A character that would have been comprised of a couple of thousand polygons on PS2 or Xbox for instance, jumps up to tens of thousands on PS3 or Xbox 360. It's important to note, however, that progress obviously doesn't stop within a generation - a car in Forza Motorsport 3 has ten times as many polygons as a car in Forza 2, for instance. The use of the hardware will always improve, but as soon as you jump to new hardware, the ground starts shaking beneath developers' feet and there's a heap if shoring up that needs to be done before things settle down, and that costs money.The upshot is that while many developers and publishers are already reluctant to take risks with PS3 and 360 games (because blockbusters cost so much to make), a new generation of consoles would require an even more significant investment, and you can bet that we'll see a lot of licensed games and paint-by-numbers titles initially. Conversely, the longer a system is on the market, the more streamlined development becomes and the more viable fringe titles become. After all, the bigger the install base, the more mega niches are likely to form.

3) Sequel Delays

Just as development costs have been rising ever since videogames came into being, so too has the length of time it takes to develop a triple A title. The resources required are staggering, and as soon as you move to new hardware, the longer it's going to take to make an ambitious title. It already takes two to three years to make a great PS3 or Xbox 360… who wants to wait four to five years for GTA V?

4) 3D Gaming Is Coming… Without New Hardware

This+would+look+so+much+cooler+in+3D.+It'd+be+like,+<i>woah+dude</i>+it's+coming+right+for+me!

3D is undoubtedly going to be one of the most significant changes to gaming over the next few years, and the good news is we don't need new gaming hardware to do it! The PS3 in particular seems poised to be a leading light in this area, as Sony will have the 3D TV range to really show off the capabilities of 3D gaming, and is being quite vocal in this area.: "Next year, in tandem to the Sony 3D TV product launch, PS3 also plans to launch 3D game titles, not just first-party, but we're also actively supporting third-party 3D software development." The timeline for the system is for all PlayStation 3 consoles to be upgraded with firmware adding support for 3D by the fiscal year ending March 31, 2011. That is HUGE news. Whether it will be backwards compatible or not, the PS3 will be set for all new titles moving forward to support it. 3D is going to change the gaming landscape and that sexy black box (or cheap-looking black box if you have a Slim) under your TV has the hardware partners and the data throughput to do it all at 1080p.The future is not so certain for the Xbox 360. Sure, there are 3D titles being created for the system, such as Avatar (which is also coming to PC and PS3 in 3D), but how well the system will handle 240hz 1080p 3D and how consolidated Microsoft's approach to the technology will be, remains to be seen.

5) New Control Interfaces Are Coming… Without New Hardware

There are other big things on the horizon for the PS3 and Xbox 360 aside from 3D. Yes, we're talking about the PS3 Wand and Natal. How much they'll change the landscape is obviously debatable, but the point is that in the right hands they'll help reinvent how we interact with our consoles and our games. As mentioned earlier, this is a generation of machines that will never grow stagnant – it's a constant evolution of functionality; a constant process of redefining what gaming is.