NBA 2k9 on the PC was the same game from consoles save online play. Which sucked. But if you like better graphics and smoother framerate with the better PCs, I don't see how you pass it up. Basically, you're getting the same game. You save $30 with losing online play. Not bad.
Now that VC has taken over baseball and hockey, I would bet that they will be on PC just like NBA. We will see. But it's pretty clear from the image that it will be on PC and there's no reason to believe it won't happen.