Yeah, honestly I like the FX990 chipset better than the X79 in most regards. Native USB 3.0, a ton of SATA 3 ports, sure it has I think 8 less lanes, which kinda sucks, and no PCI-e 3.0 (another thing the X79 wins).
At least there are options of expansion cards for usb 3 or sata 3, but it wouldn't be native.
Too bad we can't have the best of both works, eh?
I find the same thing with many components.