With the in game trading system, Diablo 3 far surpassed the "thrill of battling demons and find epic loot".
The AH gave an extra dimension to this rather pointless hunting for loot forever.
Deleting it was one of the most (if not the most) serious blunders Blizzard ever made.
It showed to me that the kids have no idea and regulated Diablo 3 to a male 14 year old ADHD button smashing experience without ANY deeper game play.
Even Farmville 2 is better these days. Real Money Trading will just be the next step in game design.
/Shrug if the kids don't get it. If Rob Pardo ever makes a game again with RMAH, I am in for good.