Some extreme user might bring Nvidia to court over Nvidia not allowing it rather than not supporting but still allowing it. Such what-if scenarios can't be helped because there's always a way for someone to try screw everyone else.
Go to another camp? So if I don't like my state legislation, I shouldn't try to appeal it, I should just leave? Extreme example, I know, but the just leave solution isn't right. This isn't a case where I can get the exact same thing (or close enough) somewhere else just because I don't like the behavior of the supplier. If I happen to like PhysX, then there is no other option.
Regardless, I wasn't saying anything about a solution (which would actually be similar to my legislation example, people would need to communicate with Nvidia en mass). I was disagreeing with you when you said it wasn't a shady and that it was just a business decision. Well, yes, it is a business decision, but not one that they should be able to make. It isn't even something like where you mention we shouldn't expect something for free because hybrid PhysX requires that you buy a Nvidia card. For Nvidia that isn't enough, they want to punish customers who don't only buy their product.
Again, this isn't about whether or not I think we should boycott Nvidia or anything like that. I don't let my personal feelings about them dictate what cards I recommend when someone asks for a recommendation.