I am also firmly in the "floorstanders can be better than bookshelves plus sub for music" camp. For HT it's a different story IMO.

Having said that, M2s plus a 20-39PC+ do play music pretty darned well.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8