I think street prices might be quite a bit lower than what we're seeing on Samsung's site.

Amazon has a bunch of affordable models from Samsung. Haven't clicked through them all but here's a 65" with HDR for $600.

https://www.amazon.com/Samsung-Business-Software-Speakers-LH...

However, it's probably not the sort of "dumb" TV we want:

    Setup your TV with custom content quickly 
    and easily using the Biz TV app - available 
    for Android and iOS

Seems like this is interfacing with some sort of app on the TV, so I suppose it's not a dumb display.