A lot of good points made here. I think this is one of the better Classified Forum's to buy and sell because of the audience. As previously stated though a posting may get buried fast not to be seen.

One of the major factors is the aging of gun collectors and hunters. Go to a gun show and most collectors are gray-haired (including me.) The taste of rifles, optics, gear has changed and we have more guns, ammo, gear being produced right now. As the aging collectors or their widows try to get rid of their collection they are just dumping more on the market and causes lower prices. I had a friend who helped a widow of his friend sell off his guns and ammo. It took about three years to get rid of everything and at some pretty heavy discounts.