With the PS3, I feel like Sony missed the point. It's not about how much tech and power you cram into a console, if it's not actually good to use for either users or developers. The PS3's first half was pretty bleak, with poor performing multiplatform titles, due to an extremely difficult to use architecture. Lack of exclusive titles for its first few years, missing tons of features the Xbox 360 already had, Sony's arrogant PR suggesting people to get 2 jobs, pointless SIXAXIS gimmicks bolted onto games where they didn't belong, not having rumble at first, an insane price, Giant Enemy Crab LOL.
It took a change in leadership at SCE, and a complete rebrand of the console for it to get back on track. The PS3 eventually, ended up being a great console. But it's first 3 years were a disaster, and really hurt Sony in the long run.