re: What do you consider the biggest gaming failure of all time?

Yes, I agree, but Nintendo wanted licensing rights...so did Sony. Phillips didn't care. They simply wanted to be in some type of partnership with Nintendo. By the time it was nearly ironed out with Phillips, Sega's CD was not doing well. Nintendo then said screw the CD and walked away. Phillips fell apart; Sony accomplished great things. Nintendo saw their mistake....years after the fact.