You having an interesting observating when basically saying AAA and indie world is diverging far more nowadays than what the situation was for example in the mid 2000s. Then AAA and C-class titles didnt differed too much, and we had a strong B class as well (in between the two worlds) which we nowadays barely see any more.
If you want a more proper argument about 64x64 / 200 polygons / few 10-100 mbyte game sizes: the human eye has a limited number of receptors, and the human perception is logarithmic. When you increase the polygon count of a game from 10k polygon per screen to 100k polygon per screen, thats a very big and impressive jump in graphics quality. When you increase the resolution from 100k to 1 million, thats not that much impressive, and not that clearly noticable compared to the 10k to 100k…. Despite you increased the polygon count by 10x in both cases. This is true for texture sizes, screen resolution, sound files and so on. The AAA guys will hit a wall very soon (or they probably already hit it and checkmated themself) where it doesnt matters any more if they increase the textures size and polygon count any more, they cant make the visuals any better, no matter how hardly they want to try spending all of the money of this existence, this conception seems like a dead end.
So personally, for me, if they would start biting my ears, like demanding to increase resolutions and they wouldnt pay/wouldnt download/wouldnt play any more if i dont do it… then i would simply do it, as there is plenty of headroom, and teleporting the game size from like 50 mbyte to 150 mbyte, which is still an acceptible and realistic game size, and the increase wouldnt have an impact on adoption.