Just read this...
That's what you're getting if you buy Diablo 3. You're contributing to the slow and painful corruption of gaming into something that can only be described as a horrible greed machine.
Do NOT buy this game. Buy Torchlight 2 instead. Buy anything that isn't an Activision product.
Do you really want this happening to more game series?
P.S. Don't talk crap here about how it's a business' job to make money. Hell, it might be. You know what your job as a consumer is? To tell the business to go fuck themselves. NOT defend them.
EDIT: Read this, on why Blizzard is making their games online.
EDIT2: You're going to buy a game off these guys?