For what it's worth, I thought it was too good to be true also - just a couple years ago the Lyman borecam, at $250-$300 (they are $270 ish right now, over $300 for the wifi version) was the only alternative to a Hawkeye, which if I remember correctly was $1600+ depending on what options you wanted. The recent surge in new precision shooters created a market - which is also why you see all the "affordable" factory PRS rifles now. I splurged one birthday and got a Lyman, and was dissapoited. It always gave dull, grainy pictures even on a brand new hand lapped bore. I kept looking and within a year I saw an Amazon suggestion for the rigid teslong. No comparison for an electronic borescope, Teslong beats Lyman. They've been out for a couple years now. I don't think there are really any alternatives right now - the cheap $10 endoscopes are still too big for small bores. As far as quality goes, it's like taking pictures with a modern cellphone versus a phone camera from 20 years ago. Of course the Hawkeye is like sticking your eyeball in the bore.
I just checked Brownells and the Hawkeyes have fallen to well under $1k. Lyman's website only shows the "Pro Wifi" model right now for well over $300. Funny what competition does.