Most of the games I played as a kid were not "mine", they were "the family's", and as such I've had a horribly late start on a game collection. I did manage to snag all 200+ Commodore 64 games we had (before they were tossed), and since then I have started working on a collection of Favorites, all of which sit at a vaunted location above my computer.

For the most part, though, my collection is digital. I currently lack both the room and funds for much of a physical collection. So I accumulate Steam games instead.