Price isn't everything
SSDs don't need to reach the same price per GB level as HDDs. They just need to be cheap enough. A bicycle beats a car hands down on price per seat (at least at the utility end of the market), but people still buy cars as they do things that cycles can't.
An SSD just has to be "cheap enough" and its overwhelming advantages in terms of throughput, latency, IOPs, ruggedness, power consumption and the generally much more responsive nature of applications and systems takes over. I for one will never, ever buy another computer with an HDD as the system disk, and I can see the days when I use them for bulk storage approaching. At a certain point I won't care that I'm paying more per GB as the cost will be outweighed by the utility.
Biting the hand that feeds IT
