I just want to say that, personally, visuals never put me off games, 2D or 3D. And condemning games cause they're 3D is just as vain as condemning game for being 3D. However, I have to object to what devilmaykickass's example of one being forced to substitute CD's and TV's for cassettes and older models of TV because that is a matter of efficiency. Cassettes are more awkard to use and so are some of the older models of TV. In regards to 2D/3D games, its all asthetics. The efficiency of the games is identical. And why IS 3D intrinsically better to 2D? No one has answered me apart from Takara who, like me, pointed out that there are actual storytelling advantages to 2D. As far as I'm concerned, 3D isn't better, it just detracts imagination a little while you're playing the games sometimes. As for the music, it was fine in the early days. There's nothing wrong with MIDI's, there's just slightly less scope for composition, although in the right place, MIDI's can work just as well as stuff composed by a group of live musicians.
As for the example of FFX to FFIV, I started playing the early FF's after years of playing the PS games and other PS RPG's when FF Anthology (4&5) and FF6 came out in the UK and I had no problem making the transition to 2D to 3D. None at all, I'm just not shallow enough to have preferences to either. I just acknowledge the advantages of 2D as appossed to 3D which can't play on your imagination in the same way.