"The D800E is for tweaks who care more about pixels than pictures, but that's most of my readers! Yes, I'm sure the D800E will be much sharper at 100% on-screen when shot by an expert under controlled conditions"
... which means if it's most of his readers, it's 99% of the readers around here :-)
I think this may be the key sub-quote here:
when shot by an expert under controlled conditions
This means studio or landscape using tripod, where you can anticipate and avoid moiré at capture, rather than (fail to) correct it in post. The numbers in this market segment will be very small. A camera without AA filter will also incur a substantial support cost since all the newbs who don't understand what they're buying will return their new purchases as defective (my buddy's iPhone doesn't do this!) On the plus side, that means more available from the refurb store!
My guess is that camera vendors could only get away with such a specialty product if it's so expensive that the clueless newb buyer would be embarrassed to admit he (probably a he) made a mistake in buying it.