Yeah, the "tool kits" are interesting. Not necessarily applicable for what we do, however: the $3,995 "took kit" (the one I assume you're referencing) includes (2) mic amplifiers (bodies) + (1) C-LOL-12 lollipop cap, (1) C-LOL-67 lollipop cap, (2) SD-C cardioid caps, (1) SD-O-D diffuse omni cap, (1) SD-H hypercardioid cap.
I think it's more likely tapers would go for (2) mic amplifiers (bodies) + (2) SD-C cardioid caps, (2) SD-C-O omni (diffuse or free-field), (2) SD-C-H hypercardioid for $3,570. So a few hundred less, anyway. FWIW, this
Gear Slutz thread seems to suggest street pricing will be ~$100 less per component than ADK MSRP pricing. If that's reasonably accurate, we're looking at closer to $3k for a full stereo compliment of bodies + SDC caps.
What other mics offer that range of modular caps at a similar or lower price point? AKG 48x, AKG 39x, MBHOs, Pelusos, and...not sure what else. Personally, I'm not at all a fan of the AKG 48x or 39x. MBHOs...I've used and liked okay, but just okay in my book. I haven't heard enough of the Peluso's to express an opinion one way or the other. The ADK modular set...who knows?
At any rate, all I'm getting at is that it seems premature to dismiss them out of hand before we know <1> the street price, and (more importantly) <2> how they sound.