Your question or point being . . . what?
Great, if you think you need "Thunderbolt." Even greater, if you think (as I do for the moment) that ASUS is building some great motherboards. But when it gets down to bang-for-the-buck, I'd look at several Maximus versions and and some of the more modest ASUS Z77 options, with an eye toward what it is I want and need specifically.
The Maximus board(s) may feature convenient means of measuring voltages with a multi-meter. For some, such a feature is definitely worth the extra money. It has other features, which one may or may not find in their "want and need" bucket.
If I win the Mega-Millions Lottery, I will put a Maximus V board on my purchase list. [I will also buy a new house, a new car, and even a bigger TV.] It's not a lot of chump-change difference -- between the high-end Maximus flagship and (say) a SaberTooth or P8Z77 model. But since I haven't won the lottery, I ask myself the basic questions before I make the outlay.