Just a little note about the price. Suppose you haven't played AU before and you decide to purchase Arcana Evolved for $50..
If you play one time with a group of five players.. $10 per game.
Two times.. $5 a game, the cost of a matinee where I live. People can understandably complain about game prices, but I think it is a little misplaced. After all, most of us use our book for years and get hours and hours of enjoyment from them. So I don't really mind. Of course, I don't buy every splat book that comes out, or miniatures, or CCGs, or XBox games, so I might have some extra cash.
I own AU in hardcover, and PDF. I will probably buy the Hardcover of Arcana Enhanced (I will give my old copy to a deserving player though). I've been pretty pleased with the stuff they produce.
(Now... if only he'd convert Banewarrens to AU...)