Sometimes, a a particular capoed chord just sounds better. I figured out one Mudcatter's song with the "wrong" chords. I wound up with an Em song played with Am chords capoed up to the 7th fret. When he told me what chords he was using, I still wound up liking the Am chords better because the chord played as a G shape in the song sound better to me than the D without the capo. Also, the higher chords sound better to me on this particular guitar than they do with the capoless chords.

Don, I'm playing mostly using only 3 fingers, so I also find playing up the neck a LOT easier.