> it is as if the person that supplies the paints has copyright of the paintingThis is a great characterization of the problem, though it's not entirely clear where the issue lies.
A production company gets together a ton of money to build a film or game. Because of that they own the profits on most of the produced work.
What's really tough to understand is that they can choose to stop making profit from it, and in so doing, stop others from using it altogether.
All of these cloud-centric services suffer the same fate -- as soon as the remote part of the product disappears, the entire thing becomes unusable. If that WoW license, for example, didn't come with a "right" to run the game against an independent server, does the production company have to leave itself open to lawsuits, for example, originating through players of the game and weird things happening on even a "vanilla" independent server?
I just don't think "I paid $40 so it's mine" can cut it any more when we're really not buying many of the core or important bits of the game itself.