They could do easily but they don't. Why? Mainly because the the vast majority of people would not be willing to pay for it, plain and simple. New technology costs money to implement, a lot of money. If it doesn't make good business sense, i.e. make money, it won't happen.
And it's more than just making money, it has to return more on their investment than the alternatives. If a company can invest $1000 in a certain product and earn a profit of $200, and invest that same $1000 in another and profit $100, which is the better choice? The demand from a small group of enthusiasts such as those of us here rarely justifies the investment you would need. We don't have to like it, that's just the way it is.