I'm 23 currently have a gf for about 5 years now.
Ah, to be young and in love, foolish and naive ... sigh ...
Everybody is dead right about RealLife(tm) and the associated RealBills(tm) and RealDemands(tm). When I was 23, I had a great condo on the lake with a Pop-A-Shot and foosball where my dining room should have been. It was great for a single guy, but doesn't make a lot of sense for a couple, let alone a family. You need a place to eat.
Now, I am fortunate:
1) I have a wife who fully supports my "hobsession" (she was skeptical at first) and has recommended that I fill the basement with "as many games as you want"
2) I earn enough to support those wishes (it wasn't always that way) and have tons of time to spend with my wife and kids
3) I have enough space in the basement to house the hulking beasts where they don't interfere with the rest of our lives
If, however, I neglect my duties as provider, father or husband, I would expect her to come crashing down on my head like a freaking anvil.
And that is exactly what she would (and should) do.
Cheers.