Small games would be your best bet, though I have a feeling that the indie bubble is bursting. In saying that, ultra niche is the sure way to go for small projects.
It's super competitive, and small games (that are financially viable) probably take longer to make than you realize (Super Hexagon took more than half a year to make, I was play testing early versions of it).
Yeah totaly, I'm working on a game right now that has been in development for 8 over years! But again, some amazing stuff is built at game jams though most need at least a month or so of polishing.
Toto, we're not in 2008 anymore :)