I owned small tubed components for the last two or three decades… preamps and CD players.
I hesitated on tube am[s) for decades entirely because the fact you had to replace tubes (occationally)… I was purchasing at the very edge of my financial ability, and the need to bias. I wanted 100% reliability for my purchase.
Well, I am now sorry that I had hesitated. The characteristics of tube amps far outweigh the over emphasized down side. Also, my amp has auto biasing and slow startup, extending tube like and increasing reliability.