Internet of Shit devices, Smart TVs and etc. would be unaffected by DNS-level adblocking. But to be fair, one shouldn't support such awful business practices by buying such devices anyways.
How do you like them ads?
Update: https://www.flatpanelshd.com/news.php?id=1416894724&subactio...
You have no evidence that the devices would be more expensive. Your only evidence is that the companies would receive less income all else being equal. But what is the evidence that the trade off is your eyeballs instead of your dollars? And if the tv is perfect except for the ads, where do you get the more expensive, ad free version?