Also: Never get an SSD for anything older than Windows 7, I don't know about any other OS, but this is the only one that has the trim command which automatically cleans up temp / old / bad data, it's essentially an auto-defrag. This is vital for longevity.
Another benefit is that SSDs are nowhere near as weighty as HDDs, as they have much less material in them. I think they give off less heat.
Another deficit is that it's commonly agreed that using the SSD for anything other than boot-up is a bad idea if you want longevity. They DO have a limit read/write lifecycle.
