As the battle between the titans rises into ever thinning atmosphere, they leave more room at the lower tiers for alternative approaches. Like crowdfunding, self-funding indies, etc. This is the area that excites me, and yes Ė itís the area where greater experimentation can be taken, because the risk-to-reward ratio isnít quite as high.
Itís a fallacy to believe that all the innovation is happening on the indie side, or that AAA canít take risks (they do by their very creation!). Itís not, they do, and while the innovations on the AAA side may get a little buried in otherwise low-risk conventional gameplay, there are cool new ideas coming out of AAA all the time, too.