Sony sold me a PS3 and then disabled a piece of it. The legal system did absolutely nothing. If Sony and I ever settle up, it can't be through the legal system because the legal system declined to get involved.
File a small claims court case, I find it hard to believe that the legal system declined to get involved. If you feel you've been wronged, then you do something about it... legally. Otherwise, sell your PS3 and move on. The best thing you can do is to exercise your rights as a consumer and not spend your hard earned money on products made by that particular company ever again.