Solid State Drives are still very expensive compared to mechanical/spindle drives found in desktop system. But:

"The benefits that these drivers offer compared to a mechanical drive are numerous, and include lower power consumption, improved performance, increased durability, less chance of data loss (no heads to crash into the platters), no noise and no heat output."

It's a win-win situation, especially for the mobile segment, but are their drawbacks? Digital Trends has an in-depth look at the pros and cons.