Well… the data speaks for itself really.
Boot times have also drastically improved. From Cold-Boot to Desktop in just over 30 seconds.
Final thought: The next upgrade you do to your computer is to purchase an SSD, and recently there have been large price drops in the 128GB to 256GB range.
I got my Crucial M4 128GB SSD for just over £75 (~$120), but even 256 GB drives are coming down in price now reaching the £150 mark (~$230).
So what are you waiting for… go get an SSD!