They should cost basically the same, I mean PC ports already have the improved graphics that we can expect to see in the next gen consoles, so basically they already have the game resources available, it's just now they won't have to lower the resolution/textures as much to get it to work smoothly on the consoles
I don't really care about used games that much because I don't buy my games used. I guess I wont be able to play games I borrow from friends but w/e. However I'm either going to play the waiting game and wait for prices to go down.
Just buy a WiiU.
Or get a gaming PC and say goodbye to Sony. --- Here I come, King of Heroes! Do you have enough weapons at your disposal? - Emiya Shirou