Kind of like you said, I'm only 23 so I'm not exactly expecting to go anytime soon, but I have thought about that plenty of times.
I told my wife once that when I finally kick the bucket, that I will require a giant tomb to be constructed to hold my remains, and to line the walls with all of my games, and that nothing less will be acceptable.
She said something along the lines of "Yeah....I'll get right on that.", so I can only assume she'll get that taken care of for me.