I seriously doubt the ps3 is being sold at a loss now. With each revision they remove uneeded stuff (a usb port here and there etc)
But i have to hand it to Sony they seem to have done their homework protecting this machine so far. Pirating does have a detrimental effect on companies of course but for everyone pirating a game out there i would bet there are a lot more who aren't
The argument about Bluray writers/media being expensive is a bad argument, as with everything if a hack comes out demand for writers and media will increase and the prices will tumble down. I remember my first cd writer cost more than my whole computer way back in the day

and it was a whopping 1 speed as well. Now you can pick them up for peanuts.
Yeah thats another thing; so many other sectors would benefit from it depending on how its hacked. The reason DVD as a media is where it is is because of piracy and other personal uses (backups), simple as that, same for CDs.