Solid State Drives?

Are the solid state drives which are rated sata-600
any faster than spinning hard disks equivalently

hdparm rates my spinning disk:
Timing cached reads: 23882 MB in 1.99 seconds = 11975.70 MB/sec
Timing buffered disk reads: 438 MB in 3.01 seconds = 145.35 MB/sec

The "advertised" speed of a Corsair 240Gb drive is 550/520 Mb/sec
which is 3.5 times as fast.

Any experience with these drives?