Funny you mention Django, many explain his style by saying "He used his broken fingers as a capo" One of my all time favorite players.

But in Jazz, you rarely use open strings, so a capo has little use. And since most scalar patterns are the same all over the fretboard, it makes no sense to use one for solo work either. But in blues, it's a different story.

http://www.youtube.com/watch?v=bBt6j99YJMI Her is an interview with Jimmie, he explains why he uses a capo.

He can play without it to. But as a player I don't think he plays a lot of other styles than blues or rock. But does that make him a lesser player?

300 guitars... wov? Do you collect them?
I have 12, and my wife keep telling me I have too many