More sales. I bet alot of apple fans would still queue up for an ipad 5 if it does come out in March. Plus, most people don't care about generation upgrades. At the time of purchase, they'll compare it to the competition. If a company have technology that's ready to be released, they won't sit on it as that risks competitors catching up. And no one knows what Apple have or don't have in terms of new technologies.
well dont apple get their screens and such made from... samsung and LG and such?
who also happen to be making tablets and phones. directly competing with apple