Well now you got me thinking. I do end up reinstalling my os and formatting every 6-12 months, due to various issues. Maybe this could still be for me yet!
Bingo, it might require a few more steps than just reformatting (like using a manufacturer's "factory restore" utility of some kind), but performance would be preserved. Just make sure there is a "TRIM" utility available that you can use outside of the OS so you can use it from boot (USB, CD, ...).