I know a guy that is a building contractor that does the same thing with table saws, and last I heard he has over 50 in a storage facility.My grandpa used to buy every antique stove top style clothes iron he laid eyes on at an auction. He couldn't tell you anything about any of them. No childhood memories or anything sentimental. The man had tubs and buckets overflowing with irons. If you asked him why he'd say something along the lines of "gotta keep the price up on these things". Never did make sense, but I guess you live as long as he did you don't have to.
So in short I greatly appreciate these guys buying guns at such crazy prices just to keep the value up on mine.