Definitely consider Minecraft an exception although don't lose hope or anything, just be aware. Also, aiming for a AAA title requires a lot of manpower and time, games like these works similarly to big budget movies. A buddy of mine has connections in Sand Hill Road that actually funded some of his game projects and because XBL isn't that great, I hate to say a pretty good indie game didn't do so well. Really, it all depends on what you're shooting for but if you'd like advice on where to go, go mobile or go casual web (Facebook, you'd be surprised what people pay for these). There are tons of people that have been living off of social and mobile games during their peaks. With good marketing and a little lucky your game may end up well! Good luck!