Ouch. Cool, but very expensive. I don't think I'll ever own one, as I have very little desire to do so. There's almost nothing attracting me to the system at all... :/
I have my Saturns, I have some of my games, I have a RasPi. Gotta put all this stuff together!
I've got a JAg. Picked it up with the original power supply and RF adapter for about $30. Couldn't test it till I got a cheapy Jag game. Someday I'll pick up Tempest 2000, Aliens VS Predator and a few others. BUt I'd say it's worth owning if you find it for just a few bucks.
The 3do's got some sweet games. But I see not wanting anything on the Jag badly. I'm always a little confused by the die hard Jag fans. But for the price I got mine for it's definitely worth having one. Just as a cool little oddity on my shelf.