Agreed, McGrath. If a capo helps you achieve what you want, then use it. If not, then don't.

As I said, I sometimes capo up higher because it makes it easier to play a particular song/tune using different chord shapes from the un-capo'd ones; but sometimes I do it to get a different sound I can't get without it, when it might even be more difficult to play that way.

Who invented the capo, anyway? He or she deserves some sort of award.