I will no longer buy music on iTunes unless I have no other choice, and until iTunes offer multiple choices of bitrate. 128kps AAC is definitely probably even better than 192kps MP3 (maybe just better than 160kps LAME encoded MP3). However 128kps is not good enough for classical music. And actually Allofmp3.com is the best example for all online music stores. I am not saying its price, but its service. No other music store offer such service: DRM free, various major format, various bitrate to choose. I was thinking about buying classical music on iTunes, but 128kps is already obsolete.