>>248993
Some of them are out of print now yet also not outdated, like I think the DS one I have is (forget the model off the top of my head, but it's one that has an internal switch between running DS games and flashing 3DS systems for CFW, and the firmware was supported long enough that it plays even the late era DS games another flash cart I had couldn't). Other ones, such as for the NES, SNES, etc, can have various specialty chips in them that expand the range of what they can play but also increase the production cost (the FXPAK Pro, for example, has a total of like five games it's incompatible with at this point, and only one of them, Tengai Makyou Zero, would be of interest to most western players). I suppose there's also the factor of just how much money actual individual cartridges can cost, combined with the convenience of having most if not all of a system's library accessible on one cartridge, region lock be damned, if it's a decent one. Which is to say if it will let you play hundreds if not thousands of games on actual hardware, and a solid chunk of them cost hundreds of dollars on their own as legit carts, there's probably an estimated value of at least $100-200, as a hardcore user with broad interests will save money in the long run versus buying actual carts. And then there's of course shipping depending on where you order from, though if you're lucky, you might find one at a local store and perhaps avoid that additional cost. A local one here recently got some Krikzz ones for $175 each, I think it was, which certainly beats having to import from Eastern Europe, and pay more on top of that as a base price too.