Why would anyone want to buy a physics add-in card when we have a future of upcoming duel core up to potentially quad core cpus that can be useful for much more than just physics, and act as dedicated physics processor in games. Sure maybe the proprietary card is faster, but it's also too specific for my tastes.
We'll see how it goes I guess. I could maybe go for a $50 max physics addin card later on when support is higher.
Anyone know what these AGEIA cards are rumored to cost initially?
Edit: Problem with these things is IMO it's going to be hard to penetrate the market with them. Nobody in their right mind would make a game that absolutely requires them, so they will likely always have to use the power on something that those without the accelerator card can do without, probably something not terribly gameplay effecting.