Originally Posted by KJamesJR
Why pay so much for so little
The short answer is because they are worth it.
After using a SSD in my desktop I can't stand using systems without them, there is a night and day difference in the responsiveness of a system with a SSD and one stuck with a mechanical drive. I even picked up a SSD for my Atom powered netbook and was extremely impressed with that upgrade as well, you wouldn't belie that a two year old netbook could be so fast.
One thing you have to keep in mind is that while hard drives do hold more they aren't even remotely competitive from a performance standpoint. It's a bit like comparing a Dodge Caravan to a Bugatti Veyron, sure the Caravan costs less and can seat more people but that doesn't mean that it's a suitable replacement for the Veyron if you need a race car.
Flash drives aren't viable alternatives to SSDs because they can't deliver the same performance. They both use MLC flash but the flash used in SSDs is much higher quality and SSDs have extremely sophisticated controllers that among other things distribute data across many cells of flash in order to achieve better performance.
At this point most people buy 60-120gb SSDs for their operating system and a few key apps and then have 500+gb mechanical drives for storing their games and other files which allows them to take advantage of a SSDs performance without breaking the bank trying to get one big enough for all their data.