After several months of searching, I just bought a SIG 20 ga. o/u made by Rizzini. I'd surfed all the websites I could find looking for a straight stocked 20 ga., preferably tubed, weighing l/t 6#......my idea of a perfect grouse gun for an old man. I must have looked at a hundred guns with these specs but almost all were beyond my budget. The SIG was south of $1600 delivered, comparable Rizzini's were north of $2k. I buy guns to shoot with little regard for residual value. Is it common for "branded guns" such as a SIG/Rizzini to have less value than the unbranded version?