As long they do itembased games we will see alot more of this. When Items becomes the way of develop you character and people dont wanna play the games to get it, it will not stop.
Bind on pickup or other soulbound solutions is halfhearted way to battle it, when break the silly "forced item upgrade"-systems will end it. Leveled up characters might still be at sale however...
But then again, as long most of the western countries thinks the forces of marked is a law of nature, there will always be some way to make an extra buck if theres a demand. And as long theres people wanna play games they dont wanna ..eum.. "play", there will be a demand.
Ok, As I cant really understand why people wanna pay IRL money for in game stuff, im sort of against it. I just hope developers focus on making good games instead of making this a part of gamemechanics (ie SoE), only to make that extra buck.
...edit:
If there was an option to vote: "I want developers to make the games interesting enough to be played" I would have picked that.
I dont think it allways ruin games, but it was the closest thing for me to pick...