I have a lot of hobbies and interests, so there are definitely ebbs and flows - but I've been collecting since 2003. I'm 45 now, and while I don't post or buy/sell games nearly as much as I used to, I just picked up a new game last week - so I'm still "in the game."
My collection is mostly...
I have two game rooms:
1) My downstairs game room currently houses 7 pinball machines. This is my "hidden room" behind "haunted" bookcase.
2) My upstairs game room has 3 pinball machines and 3 vids.
I used to have several games in my downstairs bar and a couple more in my dining room, but it...
I think every game I've sold was so that I could get a different game, so in that sense, I don't really regret selling any of them. I'm really happy with my current lineup (mostly pins at this point).
But if I had a lot more space and an endless supply of money, there are several I'd buy again.