I definately have second thoughts about returning with this change in effect. Istaria has essentially a closed economy. Items do not wear out and there is not enough new blood in the game to keep the economy viable.
Before I left I had gone 3 months with no commissions for weapons or tools as a level 100 Weaponsmith/Carpenter/Fletcher/Blacksmith. Once anyone reaches the level cap they no longer have to buy any of these goods.
I stated in a thread long ago that a PB nerf without looking at the complete picture will not work. It will be interesting to see what happens but I have my doubts.