Here’s a great tool: SSDLife.
Back in the bad old days of hard drives with magnetic platters, you could only speculate about their life expectancy. With SSDs, life expectancy is a lot more predictable, and that’s what this tool does.
I used it to learn that I’m probably working one of my SSDs harder than I should. But reading the comments, it seems a firmware upgrade helps life expectancy sometimes–probably they’ve tweaked the wear leveling. Mine’s not dangerously low; the stats suggest I have 6-12 months before I wear the drive out if I don’t change my ways. And a firmware upgrade could help that; I’m running on a very early revision. I also verified my system settings with SSDTweak to make sure I hadn’t missed anything. For all I knew I could have forgotten to turn off the last file access registry setting.
But truth be told, it’s just a 32 gig drive. I may very well be upgrading the drive between now and then anyway.
It’s nice to know that I may need to do something, and to know it’s not an emergency, just something I need to pay attention to. So I’ll watch for a sale, and jump when I see a deal.