I don't mind bazaars and the like, but the 1.2x system got old quick when you had to spend a couple minutes going somewhere to get one item then somewhere else to get another. If you needed to buy a lot of stuff it quickly became a drag.

People will probably figure out a way around it by having a third party site and/or data collection plugin that parses the information anyway and uploads it somewhere or a place where players can just put what they are selling and for what price so others can use the website's search to find things defeating the entire purpose of hiding the prices.

Don't underestimate the power of laziness.