Servers can go down more than you think. Rackspace had an entire wing of their Texas data center go down hard 3 times within a couple months a few years back. I know because PortableApps.com's dedicated box was in that wing. It was an issue with the equipment that switches form external power to battery to generator power. And there was no secondary backup to that, so it would go down and take the whole wing all at once. This would corrupt our Drupal database and it would take about 8 hours to rebuild. So, having a reliable SSD with power loss prevention could be a lot more relevant than you expect.