That aside, is innovation (technological or otherwise) the goal of video games? If past a certain year the best games of every don't seem to be any better than any other, but just different kinds of good, to me that's not stagnation, but rather that the designers collectively figured out how fun games that are not constrained by the hardware. There's a reason, for example, that past a certain point lives systems just about went away, or autosaving nearly completely replaced manual saving.