Quote Originally Posted by Kyros View Post
1) NPC's don't sell HQ's.
2) NPC's that sell stuff past 20 are usually only in one specific spot and most players can not be bothered to travel and waste time just to save 1k on a NQ.
3) NPC gets expensive, fast. No one on their right mind would buy a level 30 weapon for 20k when the AH has it at 5k.
4) NPC's items don't sell the vintage/recrafted gears that are almost always superior.

I could go on and on. Really, I haven't considered NPC's as any kind of competition, ever.
What he said. Honestly the NPC's have caused no issue with me at all.