Cornet where is the hype??? RAID0 has been around for years and a lot of people who advocated it years ago still do today.
In a properly configured system RAID0 will
not slow it down and saying other wise is harking back to the days of sub 500MHz systems
Yes your right PATA/SATA drives do fail but the only people who complain when they loose all there data are the ones dumb enough to have no redundancy.
Whether that be an automatic methods or backing up important stuff manually.