First off, I generally don't play PC games, along with the vast majority of visitors of this site. This is a console centric site, so I'm not surprised by the lack of interest in PC related things.
also, in my opinion indie games lack 1 of two things in general
1) Length
2) Polish
I personally do not know of any highly polished indie game that lasts 20 or more hours.
World of Goo has my interest, along with a few other indie games, but they are more to fill the gaps between Tales of Symphonia, Wario Land, and other big releases.