I would like him to be traded and I think his value would be decent if he continues to perform well. People around the league these days seem to love to make moves for extra pitching just for the sake of doing it, even if it isnt really that needed, or even that great. People will overpay for a high priced pitcher who might not even be any better then the guy they are bumping out of the rotation for him, but just the whole idea that it is a "move for pitching" gives this false enthusiasm about it.
However I honestly dont see the White Sox trading anyone if they are in playoff contention at the AS break.