I collect old games on GOG.com and from humble bundles that I owned in the past, or remember wanting to play but never got a chance to. Rarely do I actually have the time to play them, and rarer still do they capture that same feeling. I still collect them though, as it makes me feel good to think at some point I'll end up with a bunch of free time and a bunch of games to play, even if when I'm honest with myself I don't see that happening any time soon. Just knowing it's there ready for me if I want is a good feeling (if it was cheap enough, so I don't feel guilty).