That's odd, I've always thought that given its college-bowl atmosphere, Jeopardy! is uniquely poised to attract people who are both erudite and of quick wit.

The guy who hacked Press Your Luck fits more your stereotype; given its flashing lights and general brouhaha, PYL seems more of a magnet for that sort than Jeopardy!. There are also quite a lot of that sort in The Price is Right fandom (yes, it has a fandom!).