Read distance measured in microns, magnets, heads, cylinders, normal forces, weight and my favorite, impact functions - all of these seem like great reasons to move to SSD.
1000 (or more) rewrites is a scary limit for the SSD route, but I like the idea of walking around with my laptop on and not worrying about drive failures (as much).
Take this for what it's worth, but I was at a conference a couple years ago and the VP of Intel's desktop support division said that 30% of his problems with laptops were solved by requiring folks to wait for the drive to spin down after hibernating/shutdown operations and before shouldering the laptop. Even if the number seems somewhat inflated, it seems like good advice for anyone with a "conventional" hard drive.