SSDs have considerable longevity today, and could without a doubt survive a few hundred years of rewrites. The problem that arose concerning SSDs was during the beta when the program and associated files were updated. Still, the only real advantage of SSDs is quick load times, which comes into play when you start AH or load a different map. It is not enough advantage to be of much value, unless your system frequently crashes and if that is the case you should probably be on a platter drive anyway.