The problem . . .
. . . with sorting out one's storage is that the market is moving very quickly right now, making it difficult to choose a best-in-class solution. Storage is also stupidly expensive, and storage decisions are difficult and time-consuming to unwind, leading to a certain conservatism when it comes to deployment: if you make the wrong choice, you'll be stuck with it for years. Also, the tendency in the storage arena is to over-promise and under-deliver, so one must take with a grain of salt any vendor statistics, performance metrics, etc., and be sure to read the fine print.
The reason for all this is simple: storage is about the software, not the hardware. Any numpty, even Eadon, can throw a bunch of hard drives in a box. Designing and implementing a sufficiently robust architecture is more challenging but essentially a solved problem. Writing software which can efficiently and effectively use that hardware is much more challenging. Unfortunately, the hardware and software are usually packaged together and/or buying the software standalone is sufficiently expensive that changing platforms is an option undertaken only with a certain caution. On the other hand, most incumbent storage vendors charge so much for maintenance that, past a certain point, it's no more expensive to switch than it is to stay with one's current provider, hence the proliferation of storage start-ups.