my room is about 2200 CF and I don't feel like the m80's are overkill at all.
Good point... overkill is the wrong word... What I meant was that they play WAY louder than I ever (ever) could handle in a room that size. Overkill for me really doesn't exist either. I love them entirely and wouldn't trade them for the world...
Besides, who knows, there may come a day when I want to open the windows and crank them to full volume so that I can hear them from the mailbox two blocks away. That way I wouldn't have to take my iPod with me when I go out for a jog or to the mailbox...
I haven't seen that need yet, but if ever I do, the option is there.