I wouldn't be so sure about the "completely rewrite them daily" part. They're talking about a CF card that's usually used to store camera photos. They're referring to a single rewrite of any given cell once per day for 70 years, or 25,550 rewrites. But while you may not rewrite the entire card, ever, you will be rewriting certain cells far more often than once per day. Swap files, log files, whatever. There's a lot of re-writing that goes on all of the time in the background of an OS. If that weren't the case then companies would not be dedicating time and resources to developing efficient wear-leveling algorithms.
In other words, if your swap file or log file is written to 100 times a day, that's approximately 255 days until you're going to get a cell failure. And without the hardware to handle cell failures, if a crucial piece of data is there your system is likely to crash. SSDs take this into account in their design and are designed to limit the wear and work around failed cells when they occur. There's a big difference. On top of that, having an OS that understands SSDs can result in additional efficiencies and longer lifetimes.
On the reliability note though, since they tend to be (other than cell failure) much less failure prone than mechanical hard disks, running a RAID 0 array on SSDs is a much lower risk than on traditional disks. And a heck of a lot faster too.
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