Oh, you bet I enjoy all these games. None of them goes to waste. I see massive collections at IGN and Gaming-Age, and some people still have their games in plastic. I shed a tear whenever someone brings a game home and doesn't even open it. My rough guess is that a quarter of my games have been completed 100%, half have been played through a lot, and the remaining quarter are too frustrating to sit down and play. The last quarter is mostly comprised of games on the NES and Genesis games.
I have so many games to beat, I pushed my Playstation RPG backlog off the list. I haven't bought an RPG in a while, either. I officially quit them.
I'm going on a game fast now to beat all these games. I will only buy Zelda: Minish Cap for the next three months.
Ulala, I am envious of your collection.

I wish I had more Sega CD games. And I've never played Space Channel 5. I hear it's awesome.