If you were really quick on the draw this weekend, you could have secured a pre-order for one of 12,300 limited-edition 20th Anniversary "Original Grey" PS4 units at just $499. If you weren't lucky enough to get in on the ground floor, you could end up paying thousands of percentage points in mark up for the same console on eBay.

This afternoon, a seller from Bellflower, California, sold his 20th Anniversary PS4 pre-order for $20,100 on eBay. Late last night, another auction from Patterson, New Jersey, finished at over $15,000, a price that the seller confirmed as paid in full to GamerHeadlines.

As of this writing, nearly 300 Anniversary PS4s are listed as "sold" through eBay auctions that have closed in the last two days. While a handful are reselling at or near Sony's $500 asking price, the median auction is finishing at close to $1,800, a more than 250-percent markup for a console that hasn't even shipped yet. A quick search for "PlayStation 4 anniversary" finds at least 350 more systems being actively auctioned on eBay right now, many with asking prices well into the five-figure range. Combined, that suggests about five percent of the total allotment of 12,300 Anniversary systems has either already sold or is looking to be sold on eBay at the moment.

A "very limited" number of U.S. pre-orders for the 20th Anniversary system reportedly sold out within minutes of being listed on the Sony Store on Saturday. "We appreciate your interest, but we will have no more inventory," the Sony Store page currently says. "Apologies for the inconvenience."

Japanese gamers will be able to put in for their opportunity to buy an Anniversary Edition console through a lottery system. Sony hasn't yet revealed how Europeans will be able to get their allotment of extremely limited-edition consoles, but a PlayStation Blog EU post says the system "will not be available via traditional retail channels" in the region. In Spain, 350 of the limited edition consoles will be auctioned off directly to consumers with proceeds going to charity.

Units will be shipped to the lucky pre-orders on December 21, when a lot of them will apparently be shipped directly to others paying a lot more on eBay.