I have a room full of some of the best tube amps ever made. Love them, and if I only played at home or did studio work, I’d probably still be making money with them. I switched to the Fractal Audio Axe Fx over a decade ago for live gigging, and never regretted it. That said, I’m never giving up my amps. Why would I? They sound as great as they ever did, and I’ve put back enough tubes to play them for a long, long time if I never bought another. By the way, people have been predicting “the end of tubes and beginnings of solid state” since the later 60s. It’s not new. And while tube supply isn’t what it was, the end of tube production has also been a Chicken Little discussion subject for at least two decades, as well.
I see no conflict between having both, and even using them together. If you ask me “tube or solid state?” My answer is simply “yes!”