Kaz Hirai states that the decision to remove the rumble function from the PS3 controller would save gamers money, by reducing the cost of the controller.
“The issue is trying to isolate the vibration feature from the motion sensors,” he said. “Is it technically feasible? Absolutely. But the balancing act that you need to do, is to be able to present the controller to the consumer at an affordable price. We have one controller in the box, but many consumers will want to go out and get an extra controller. To isolate the vibration from the sensing, if that means that the controllers are going to be so expensive, then we’re doing the consumer a huge disservice.”
So they tout the console as being so superior than it's an honor for you to spend so much money on it, but yet this technology would raise the cost of a controller so much it would be too much. Here's an idea, make one with and one without and sell them both and let the consumers decide. No they wont do that because that's not what they are talking about here. If they concede to use rumble in this new version they will owe even MORE money to the people that own the patent on rumble technology and Sony has been ripping them off for years and havent paid them a dime. But then again with their stock slipping and needing to save some money to pay off the huge loan they had to take out to even produce this thing, they dont have a lot of money to throw around.