Just in reference to the 'Jon's an asshole,' aspect of this thread, I have spoken to people who have roadied and teched for them and they're unanimous on it - he is a prick.

Now it could just be they all caught him on off days or he's only like it with those not in his 'inner circle' but either way, if you can't conduct yourself with a certain element of civility towards those around you who are actually there helping you, it doesn't matter who the hell you are (or you think you are), you're a prick in my book.