Max
I haven't used Balsamiq but the feature set looks similar. I'm also only paying $9/ month vs $79, so less of a commitment in the short term. I have fireworks as well which I will most likely use for more sophisticated mocks with interaction design.
seriously?! have you listened to that album all the way through? or 'ok computer?' or anything? i can understand not getting into their heavier, electronic style stuff, but if you like 'fake plastic trees' surely you'd like 'house of cards,' or "the bends," or 'let down...'
in my opinion everything they do is amazing, so it's hard for me to comprehend the opposite opinion.