I have a theory, maybe not a very good one. These games developers and publishers see PC gaming as an issue as where we are now Consoles are looking like the crusty inbred relatives of the PC graphics wise, even if that fact is oblivious to most console users. Games houses don't want to be bothered to do ports to just sell a handful of games compared to consoles. They don't want PC graphics driving the technology forward when console graphics are (at the moment) pretty old tech. To use a comparison of what I am mumbling about its like Pharmaceutical firms getting not wanting cures as they damage profits, they just want treatments and suchlike. The more PC tech drives graphics forward, the worse console games are going to look and the worse these ports are going to look. Seems like these firms know this and are taking these kinds of measures to try and kill PC gaming. If there were next gen consoles just out, fine, but that's not happening any time soon.