You can buy a simple office keyboard for $25, but there is a market for custom mechanical keyboards 10x as expensive.
You can watch YouTube for free, but a lot of people buys the premium subscription to remove ads.
Sam thing here: there may be enough people wanting to buy an ad-free, surveillance-free premium TV with user-inspectable, user-updatable open-source firmware, latest HDMI, and in interface for network boxes to taste. Given that it has a good panel, is well-built, has a minimal but premium look, and the producer offers a modicum of tech support, it can easily be sold for at 150% or even 200% the price of an ad-ridden smart TV from big names.
Such a business can be a good business, even though it won't show hockey-stick growth.
Or 100x even