I have the 30th Anniversary as well. It has its positive qualities: it is dead quiet, flat, nice thick vinyl and EMI deserves top marks for the quality control on it. I ended up picking up a pretty clean used copy for my son (1973 Canadian pressing with Mastered by Capitol stamped into the deadwax followed by "Wally" in handwriting FWIW) for about $5 that to my ears just sounds better: more open, dynamic and communicative than the 30th which, although quieter, sounds a bit "muffled" by comparison.
Opinions on the 30th Anniversary edition are all over the place. Good music though. I was never into Pink Floyd when I was younger but really like some of their stuff now.
