Why do people do this? Buying a game and deliberately not playing on it in the face of everyone proclaiming it as one of the best games ever made. The worst thing is, these kind of people play tons of crappy games in-between. There's no justice...
I do it because I have a life I'm afraid. I used to have time for all the gaming I wanted, but now a days with a young son I barely have time to play, so the games that I do play tend to be ones that I can grab a quick half of. Demons Souls doesn't really allow for this, but I'll have the time one day.
I've got quite a few unopened games sat in the same draw, I always buy what draws my eye, even when I know that there's little chance of me playing it. As my gaming time is so limited I never play crappy games.
Wish I had time to waste like yourself, sorry.