It's a disk drive not herpes.
Hrm.
The OP's point, I believe, is that Flash drives and SSDs have a limited number of rewrites per physical byte, which means that if you run them long enough and the same bytes get used over and over, eventually they can stop working. Spreading the "wear" out would effectively lengthen the lifespan of the entire SSD.
Assuming that's correct, I think I read somewhere that the effective lifespan of the SSDs released late last year was in the
decades, something like 50 years or so.
EDIT: For what it's worth, I think you're a lot more likely to suffer a hard drive failure (motor, bearings, etc.) long before SSD byte fatigue becomes an issue.