By comparison, those who gave up their eligibility at regular Wheel for a shot at a Game.com and maybe limo rides to and from school for a week are probably wishing they waited about another four or five years so they could use their one chance for a shot at cash and prizes that weren't as lame.
Maybe they are, maybe they aren't; but they also got to have an experience that most kids (like five-nines most) don't get to have. It's possible that the prizes didn't even enter into it; that it was getting to be on (a version of) their favorite game show that they cared about. And if they wait five years (and they don't know it would be five years, let's put a point on that) maybe they don't get through the qualifying gauntlet. I just don't think the kids who got to be on Wheel 2000 were saying "dang, I thought I'd be snowed with cash-unt-prizes".
Let's imagine that you're selected to be a contestant on $25,000 Pyramid in 1986. (Let's also assume that you try out for both the daytime and syndicated offering simultaneously, but you can't pick your pony.) Who here would say "Y'know, I really had my heart set on the $100,000 version, so I'm going to graciously decline, sweat out the cool-off period and try again. The show will almost certainly not be cancelled when I qualify again."?
Jeopardy has three tournaments where you give up something in order to get on the show (Tournament of Champions eligibility or the chance to play a longer string of games) but they have no trouble finding teenagers, college students and teachers to fill the grid with contestants. Lots of game shows in the 70s had the same deal. Wheel of Fortune had concurrently running editions as well, and they filled the spaces just fine.