Pitches used to be worth quite a bit as they had a really good reputation for being a great all-rounder but I think that these days the problem with them is the 1 1/8″ head tube – anyone wanting a beefy do-it-all bike is likely to want decent forks on it and it’s getting tougher and tougher to find them with straight steerers.
Additionally, the Pitch is known to be a big bike, such that even at 6′ I’m riding a Medium, so I’d say the market for a Large will be smaller.
FWIW, bought my 2011 Pitch Pro just over a year ago for £875, completely standard and hardly used.