Last week, we warned readers not to get too excited in assuming that the Nintendo Switch's successful launch implied long-term success for the new platform. That said, the system remains nearly impossible to find at North American retailers nearly two weeks after its debut, which has led to a significant markup in price among third-party resellers.

A quick search of 90 completed eBay Switch sales over the past couple of days finds a median selling price of $440 for the Switch, a 47 percent markup over the $300 MSRP. The absolute lowest recent selling price for the system was $359, while one lucky seller managed to get $810 for his system just yesterday morning.

The markup remains high if The Legend of Zelda: Breath of the Wild is included with the system. The system/game bundles resell for a median price of $525 on eBay (46 percent above an MSRP of $360), even though the game itself isn't hard to find at all on retail shelves. A Switch with the harder-to-find, extra-packed limited edition Breath of the Wild, on the other hand, resells for a median of $624 (56 percent above the $400 MSRP).

The story is broadly similar on Amazon, where the lowest price for a new Switch among 164 third-party sellers is $489.99, as of this writing. One greedy reseller on the site is asking $822 for the system, despite the presence of many lower-priced options.

When resale price inflation like this happens around a new console launch, it's always hard to tell whether outsized demand or limited supply is primarily driving things. The NES Classic Edition saw its own ridiculous 200 percent eBay markups after launch, after all, but that's largely because Nintendo only shipped a reported 200,000 units to the US in the system's first month (that number eventually grew to just 1.5 million units worldwide by early February).

Nintendo has faced its fair share of underproduction conspiracy theories in the past, though Nintendo of America President Reggie Fils-Aime strenuously denied that the company ever intentionally held back Wii supplies to increase the appearance of demand.

For the Switch, one report suggests Nintendo sold 500,000 systems in the US in its first week, amid 1.5 million systems sold worldwide. That's broadly comparable to the one million worldwide units Sony and Microsoft were able to sell through in a single day when the PS4 and Xbox One launched in 2013, suggesting Nintendo hasn't been underproducing the Switch compared to the competition (at least initially). Nintendo had previously projected that it would ship 2 million Switch units to stores worldwide by the end of March.

Of course, it's still too early to tell if the current Switch sales-mania will extend into Wii-style long-term shortages, or if the system will see a Wii U-style initial fervor devolve into lackluster ongoing interest. When we look back in a few months, the answer will very likely end up somewhere in between those two extremes.