SSD has a few pros, but I wouldn't use it for an OS outside of some embedded system. A lot of OS's have logging and virtual ram type abilities that would simply chew up the read/write life of an SSD. If you need something with low power usage and low noise, it's a good choice. Just know that it's not going to last if you use it for anything more than archival media, or read only boot drive (can't be done with some OS's). And with HDD's being so cheap now. Why spend $100 on 30GB, when you can get 1TB+ for the same cash? For a laptop hardmounted to an offroad vehicle, perhaps a good choice. For that editing machine for HD video and audio, not a good choice.