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#21
Well, because the gains from an elaborate RAID setup in regards to gaming aren't spectacular. RAID setups, provide redundancy of data...unless of course you are talking about a RAID0 stripe which provides no data protection whatsoever.
Earlier people who were drawn to running RAID 0 arrays with Raptors and such were attempting to max out their sequential read/write speeds. And they simply didn't have many other choices at their disposal.
Real RAID cards are very expensive. And far less expensive SSD's make the RAID setups questionable at best. With SSD, you not only get 300+ MB/sec sequential read speeds, but you get 0.1ms access time to your files <---This right here is the key to great performance, very low random access times. You don't get nearly that low with RAID setups.