The reliability of SSD devices still worries me
Today, I've already had a long rave about SSD storage devices under the title of 'Intel 520 240GB SSD' and there's no point repeating all of it here.
Suffice to say, SSDs haven't proven themselves both over the long term and at high storage densities. Moreover, figures for read/rewrite operations are actually published, this was never 'matter of fact' for magnetic HDs; alone, this is of considerable concern (especially when considering long term storage).
Quoting from earlier remarks: "...it remains to be seen how they work out in practice, certainly for the moment I only use them for OSes or where backups are guaranteed and regular."