Of course the 225i is a significant improvement from the 80i. Most view it as the sweet spot in the SR line. The SR's are OK for folk--much worse for classical. While a big sound stage is not necessary for most folk music, the wall of sound just doesn't fit. All that said, I can think of many cans that do folk much better in the same price classes as the two Grados.
i'm just wondering, have you heard/owned any of the cans you recommend to people?
i actually found my sr225i to be awesome at making almost every genre more fun sounding, i wasn't sleepy listening to most classical songs with them on. what else at 200$ is better though?