I've seen them go for about $400 as a D/A, and that's about what I had to spend.
If you go full screen at HD on the video and watch the first time I fire it automatic, notice my thumb and the small section of black scale between the hilt and subhilt - you push it towards the back (spine) of the grip to fire the blade auto. It is a small movement and takes a decent push to accomplish, not something that would happen without a determined effort.
If you don't deploy the scale release, the knife functions and behaves exactly as a manual folder, both opening and closing. Closing the knife after automatic deployment is a bit different: the last 20% or so of closing the blade you can feel the spring being compressed (still easy to do one handed as the video shows - notice the audible click as the spring locks). Additionally, when the blade is opened manually, the "release scale" is then locked in place and doesn't slide at all.
The knife is super cool as a manual blade, with unique style and blade proportions (the spine is beastly) and extremely high build quality, especially the fit and finish. Add the slick and secret D/A function and you have a GOT TO HAVE addition to the collection.
ETA: CK, I just noticed you're up the road in Cowtown. Hit me up if you're ever in Lancaster and I'll show it to you in person.