Do what I did.
Arrange for a guys party and ask to bring it in for just the party. The night before make sure it's on PBobble or some other game she might like, or be able to pick up really quick.
she'll be addicted by the morning.
I got my gameroom after that ploy. 2 cabs and a slot later, I'm looking for a pinball

(it's gotta be cheap or a deal though for the wifey to okay it. I made the mistake of showing her how much some pins can be. I'm a little blown away by that) She even plays the occaisional complete game of metal slug or some button masher, but always whups my tail at PBobble.
and now that being said, since we've got a kiddo now, my gameroom is now the nursery, but it was a good run while I had it.
anyway, back on topic. get her addicted to some game(s) and she'll want it in the living room.
