I would say $100,but we usually overprice things just by thinking about it until someone who knew tech well breaks it down.
I'm guessing $80.
Are most of those in a regular controller anyway?
Yeah, except for the microphone, stereo speakers, headphone jack, video streaming hardware, NFC, and the touch screen itself; that's a lot of extra stuff crammed in.
Honestly, I don't think an $80 price for this is really a possibility. I'd guess that the controller will be (at least) somewhere near the $100 to $120 range.