"Please contact us for a facial recognition demo or to discuss your requirements for a facial recognition technology solution."
My assumption from that is the price is way too high for me as a hobbyist developer, and it's not worth the hour or more of back-and-forth to try a demo and get prices. Give me clear pricing on the website and some way to access a demo without having to contact you, that way I can tell in 60 seconds if this is worth pursuing or not.
I actually am in the market for something like this, I built AllThePeople.net and would love a better large-scale face recognition system. But no, I will not contact you for a demo and to discuss pricing.
3D-AI looks like it would be a great fit, but "Call for demo" translates to "probably $100,000+ with lengthy on-boarding and extortion-level support contracts"
I don't mind calling or emailing to get a trial license, but I'm not going to waste my time or yours if I don't even know if it'll be in-budget.
Oh of, 3D-AI: I'm the lead.