Oh do get real. Bezos is a Wall Street trader turned book seller. His tech cred is based entirely on what he's read about Jobs and Gates doing for real. Make no mistake, Amazon not only wanted to make money from Kindle sales, they absolutely needed to. They haven't, therefore the experiment has failed.
The idea that any product that's cost as much money to design and develop, launch [and relaunch] and market, as the Kindle must have, could be allowed to simply break even is pathetic. There's no way margins on ebooks could be enough to warrant the dev costs alone, never mind sustain a viable business model... unless your name is Gates or Ballmer and the name of the game is producing loss making Apple/Sony/Nintendo spoilers.
How do we know this? Because when Apple released the iPad, it had many many more functions and uses than the Kindle, sold for more [at what we know will be a healthy margin], AND had links to four other revenue streams for Apple [apps, music, books, films] plus whatever business specific apps are developed, as well as the kick-backs from carriers.
Now, that's a sustainable business model. Compare that even with what Bezos planned for the Kindle, and it's obvious that they're not in the same ball park. But, more importantly, for this reply to your comment, Apple's model represents an overall revenue and profit multiple somewhere in the order of at least 10!
No, the only way Kindle can survive is as a novelty device for luddites. However, the model won't sustain a longevity sufficient to still be around when colour eink finally arrives.