on my server borean leather sells for 20g a stack. A stack of 10 Heavy borean leather sells for 300g so...... If your a Leatherworker buy borean leather and make it into Heavy then sell the Heavy Borean leather on the AH easy profit and you could get some skill points in Leather working. So far i have made 2000g of this. Buy large amounts. Heavy leather is needed alot in LW and possibly other professions.
Good luck, hope this helped
by carlgeis