I like them a lot...no question real in my opinion. I think there is room for negotiation on the price, but the $5,500 asking price isn't crazy high. $5,000-ish is a number that I think could be fair to both sides.
I like it because it really captures an extra bit of human element, John trying to sign on the front "damn that didn't work" flipping it over and signing it on the back. Cool piece.