I have a feeling a good portion of people on this board are like me where alot of the fun is the project itself with the tinkering and building , the games are just a nice side effect.
I don't have a wife..or kids... My girlfriend enjoys video games, (she bought the wii and Playstation 2 we have) as far as arcade games she likes the puzzle type games and tapper.. Her main complaint is having to stand, alot of times she wants to play, but isn't in the mood to have to stand around .At first I felt having to stand was part of "the experience", but maybe i'm getting old because I'm finding myself feeling the same way as her ,

I plan to get some nice stools soon to fix that complaint.
Honestly though it probably gets the most play when I have friends over, they don't have an arcade machine at their house to play anytime they want, so are always down to have a few drinks and play some games
Like already mentioned a couple times I think the key is compromise, Sometimes i'd rather play a nice game of marvel vs capcom, but the girlfriend would rather play super puzzle fighter.. I play the puzzle fighter with the girlfriend and save marvel vs capcom for the friends (where we can really unleash the trash talking hahaha)