I don't believe it actually helps them economically, though Hollywood has a pretty funky take on accounting so you never know. I can't imagine a sane business being glad that they were able to successfully delay selling things for X months.

I understand the rational explanations for that, but I'm just as sure that people aren't that rational. Essentially, they're trying to be too good at the negotiating game. Ever been too good at a game? Nobody wants to play with you any more.

Piracy is not the reason there's a new-release window in which most titles make a plurality of the total return for the title.

I don't believe I said otherwise?

EDIT: I was referring to the DRM part of it. The fact that people are impatient (and that this drives piracy) is kind of my point.