I doubt people hold off. Heck, if people aren't on message boards how would they even know the game didn't come with one until it was too late.
Personally I hate the idea of no manual. I like manuals because sometimes they have nice artwork, or more info on the story then you get from the game, I take the manual to work (and school when i was younger) to familiarize myself with some of the extra abilities in the game (tutorials normally tell you the move/ability once or twice and then later i forget them)
I also see it as another form of appreciation. You are paying 60 whopping dollars for a game, so Capcom oughta thank us for it or at least put more effort into the packaging. It's worth what you pay for.
if you don't play this game, you ARE part of the f***ing problem.
they give you tips during loading screens anyway. game isn't that difficult to the point you need one
Manuals are not only about the info they provide. They are about the illustration of various game aspects (gameplay info, game universe info, concept art, taking notes space--game mechanics element, useful game contacts etc), in physical form (paper feel, smell, heaviness) in an interesting typographical way (composition of text and images at a defined physical space). Its a cherised physical companion of a game's digital space.