Something like 98% of Fortune 500 companies are now using flash in the datacenter very successfully. I've worked with some. While you're sitting around waiting for flash to be 'perfected', your DBs and other high I/O applications are suffering with slow performing hard drives.
It isn't as though flash drives wear out in a matter of months, and even if they did it is something the drive will alert you of well in advance so they can be replaced. You will never see a flash drive surprise you when it reaches its write limit, unless don't monitor your servers.