Microtransaction = Cheating.
Its like the rich kid who gets al the best baseball equipment and coaching. It leaves the other teammates feeling like he cheated. In fact he did, because his effort is as much a product of his parents money as it is his skill, and so it is here. the game world is really supposed to exist in itself. In a monthly pay game, when you get the magic sword you got it by working for it, not buying it at the store because you have a great job outside of the fantasy world. THis is why gold farmers are all about cheating. Here you have the publisher becoming the gold farmer.
MMO's and all RPG's are supposed to be about merit and skill. When you take that away you destroy your achievements.