If they added the feature themselves, likely many more people would find it and use it, and the average price paid would drop. The way it currently works repre

If they added the feature themselves, likely many more people would find it and use it, and the average price paid would drop. The way it currently works represents a kind of price discrimination, just like providing coupons that people have to find and cut out. Price sensitive people make the effort to track down pricing information and may be prepared to wait for a better deal. Price insensitive ones don’t and aren’t.