It seems with the ability to trade recently out, it has also brought along a large sense of greed.
People wanting new hats for two hats, Towers for three. Heck, I've seen people want FOUR hats just for the Procedure Mask alone. And what makes things worse is people will abide to these outrageous demands just for the hope of getting a single item.
Hopefully as time goes by, we will seen more even "prices"; as for the moment, things are really out of control.