I think auction houses list estimates low to gin up interest. It seems like there are bargains everywhere for the bidding. A few times two bidders just say the Hell with the estimate, I want it and will by God own it. Holt's has a lot of low estimates I think. That or I fall in love with the same gun everyone else does. Like the 16 which had an estimate of 3-5K which I dropped out on at 14K and went for 20K. And that was in pounds not dollars. Estimates are to be take with a large grain of salt.