What does stealth bundled mean? Does it mean that it's an optional bundle out of a few or many others? Why don't the other games not sell 11m?
A stealth bundle is a dirty tactic used by Sony when a game cannot sell enough units to make respectable profits. Sony knows this is the case about GT5, so they try to sneak in a low-key bundle to trick themselves into believing it actually sold more (hence the term "stealth"). Sony doesn't care how GT5 sells, they only care that it sells a lot, even if some are given away for free. Whenever Sony has a meeting, everyone pretends GT5 sold those copies all by itself, knowingly ignoring the fact that it didn't, all so they can be happy. This is the purpose of a stealth bundle.