I looked in to this and at least for large sizes as of earlier this year, commercial displays aren't practical. The premium isn't 10% or 20% (which I'd gladly pay to omit "features" that disclose data to third parties), it's $2000-$5000 (60%-150%).

Also, for that massive premium, commercial displays often don't include HDR, HDMI features (CEC, ARC), and sometimes even 4k. They aren't a realistic solution.