I do mostly 10 gallon batch AG but I have no problem switching up and doing an extract here and there. My last brew of 2012 was a 15 gallon extrach batch and 2/3rds of it have come out fantastic and I still have to keg the 1/3rd that I added raspberries to.
Primary: cabernet sauvignon, El dorado pale
Seconday: Golding abbey, Flanders Red, Cocoa IPA, S.C.A. IPA
Bottled: Golding kolsch, Raspberry Mead, Berlinner Weisse, Caliente Pale ale, Amarillo/Citra wheat