One other thing I should add with regards to manufacturing and companies shutting down things is that it is extremely rare that a company makes everything themselves. They buy parts from other suppliers. So if a supplier of an important part decides to stop making it, that can make it difficult/impossible to continue the product line. You either have to buy out the equipment and process (if they are willing to sell) and set up a factory to do it yourself, which is expensive and time consuming, find a replacement and retool for that, if one even exists, or cease production.
Wouldn't surprise me if that contributed to CRTs going away was that a critical component stopped being made.
Wouldn't surprise me if that contributed to CRTs going away was that a critical component stopped being made.