It's time for people justifying the rmah to realize that most people are criticizing it mainly because the game was designed around it. Items are full of random affixes making 90% of them useless, drop rates of sets and legendaries ridiculously low, constant nerfs of builds and gameplay to make the game more annoying to enjoy and farm.
D2 was surrounded by 3rd party items sellers but it was far from mainstream. And it didn't bother most players simply because it didn't affect their gaming experience apart from spams in the lobby.
You can probably make a survey and ask D2 veterans if auction houses were necessary in D3. Don't be naive to think that Blizzard created for the good of the game and players. The only reason was to make more money otherwise their cut wouldn't be so high and issues I mentioned earlier wouldn't be so obvious.
3rd part sellers didnt effect the game as badly as the RMAH is trying to prove it did in D2. the only times i really heard of anyone buying anything like that was when something was released about someone paying XXXXX dollars or complete world of warcraft characters back in vanilla. or people paying that amount for item sets in D2. never really heard much about people buying potions, or gems from these sites.
3rd party sellers never effected my game if i didnt sign online, and guess what? i didnt. something DRM cant provide me, but i can provide myself is total protection, by not signing online at all. so does the rmah effect my game, the way it claims 3rd parties effected d2? no, because i dont use it, nor do i get involved in some pretend, and invisible competition that some forum posters are starting to claim there is.
u win nothing by winning d3.