Have you tried the Trading skill in BD, by the way?  I was curious how effective a point was, relative to DD.
No, I haven't.  In DD it was nice to have, but ultimately not necessary due to the abundance of gold.  So far in BD I have more than enough loot to trade for stuff, and enough gold to pay for skills.  Depending on how merchant's inventories may change with any new patches, I think skill points would be better used elsewhere.  That may change in act 3/4, though.