I have yet to be given a good reason for banning this sort of pricing model. To me it feels like a win/win for all parties involved. Faster, more accurate pric

I have yet to be given a good reason for banning this sort of pricing model. To me it feels like a win/win for all parties involved. Faster, more accurate price discovery means fewer instances of an item being out of stock, and it allows a merchant to unload less popular stock at a discount to a lucky (or clever) customer. The arguments against this seem mostly feelings based.