Re: Not necessarily.
Messing with how seats get mounted is a big deal, the seats and seat attachments are a key safety feature. Any changes will be costly.
All those sensors need to be connected to something to read the measured value. That's a lot of wiring.
The sensors, accompanying wiring, measurement units, and communication to flight controls are going to need to be tested and certified (they're flight critical, wrong weight = you could hand a very bad but very short flight).
I'd estimate $500/seat, installed price. That's after amortizing in design and certification testing. I have no experience with FAA part 121, so I could be well off the mark.
Biting the hand that feeds IT
