Im actually taking my chances and buying it as soon as it refreshes. Ill do a thread to review any bugs i experience. Ill do benchmarks and test it on gaming.
I only suggest waiting the extra month as that's what I did when I originally ordered the iMac that is listed in my signature. In the first month of its release there was a bug that affected a few users that was apparently annoying; it was worked out internally within the first month of release, so luckily by the time I ordered it, it had long been resolved. Not saying that such bugs are guaranteed, though it makes sense to be wary, especially with the iMacs.