I never really bothered with tapers, and I prefer this kind of thing to be simple, reliable, longlasting and offline, which is diametrically opposed to the kind of tech you're describing.

As someone who has shaved their head and not paid a barber for 20 years, not a penny.

Another one that wants to scan my face...... You couldn't pay me to scan my face. You would have to force it like governments do. Go to a barber shop

I started cutting my own hair decades ago, and tapering is probably the first and easiest thing I learned. Blending different lengths on longer hair is much more of a challenge IME. That and specialised styles I guess, which I never really bothered with.

a what

TBF I'd rather pay a person to do it.

... You know a haircut costs 1.5 cheeseburgers (ish) right? I'll take a human who isn't going to hallucinate and randomly remove my face thanks.

I'm probably just going to go back to shaving my head. I have no trouble growing hair, but can't really be bothered. My wife doesn't care either way which is probably the thing I most care about

I'm bald on top anyway I'm just going to keep shaving for free

Nothing

If no face scanning, and it was quick/convenient maybe £5 otherwise I'll stick to humans

If it did a good reliable job, 200€-400€ I'd rather just go to the bathroom, put something on, and wait for a short while, and then have a good haircut. Going to a barber and planning etc is a lot more work

Zero dollars.

Now if it could give me a perfect shave around my downstairs bits, then I'd be willing to shell out $200 or $300.