Go back in time about 5~7 years, and the Jaguar was going for only around $50 on eBay. Now it goes for a lot more, as suddenly it became a hot collector's item for some reason. I got mine last year (possibly 2013) with 5 games and I think it was about a hundred bucks. One of the games was Rayman complete in it's box.
These things, I think, are cyclical. I think interest in it will wane eventually as the initial wave loses interest in the consoles and want to unload them, and something else will be the hot collectible. Maybe the Saturn or the GameCube.