The PlayStation 3 Sony launched has very little in common with the system you can buy now. The PS3 launched when rumble was a last-generation feature, backwards compatibility was a core part of the hardware strategy, and the ability to install Linux on the hardware was attractive for those who liked to tinker with their hardware. So what happened?
Well, rumble was added back as Sony admitted there was more of a legal problem than a technological issue, backwards compatibility became something that no one cared about around the same time the company needed to cut costs, and now Linux support is being stripped from existing hardware. This is the new age of gaming hardware: what the manufacturer giveth, the manufacturer taketh away.