Depends.. I have what I would call *extremely* bad luck with tube amps. every single one I have has let me down in a big way. I'm tired of it. My first tube amp Ashdown peacemaker 60 blew up during a practice. Paid to have it fixed , took months and thankfully it was my friend's father, so it didn't cost much, but it worked for about 10 minutes before quitting again. It's a rare discontinued amp made in england and nobody wants to work on it. My second tube amp a marshall JCM900 worked great for about 3 months and blew up during a practice. Paid to have that fixed, it took *many* months and cost me about $200 bucks because the guy said he had to re-wire the entire board. He would've charged me more but he felt bad. Got it back and it sounded great, took it to a gig and it lasted about 3 songs before it blew up and left me stranded. had to plug into a crappy bass amp for the rest of the night. My peavey valve king actually lasted for years, but blew up during a gig and doesn't work. I took a risk and bought a whole new set of tubes and that didn't fix it. It's not worth enough to pay someone hundreds of dollars to fix it so I'm not sure what to do. My marshall JVM210H was $2000 and it worked great for about a year before it blew up during a gig. I hadn't even finished paying off the loan yet. This is the one I will probably pay to have fixed eventually and either keep or sell, but right now I just can't afford to.
funny story about my newest tube amp, a traynor YCS, I was looking at financing a new one from my music store as I needed a smaller combo that would fit in my car. The salesman mentioned there was a used one over in the corner for less , so I went to try it out and I loved it. but it blew up, right there in the store as I was playing. They said if I bought it anyway, they would give me a loaner and have it fixed and get it to me as soon as possible. The price was good so I agreed. They fixed it and I got it back, it worked for maybe 5 minutes and quit again. Brought it back, they fixed it again, got it back, worked for 5 minutes again and quit again. Thank god I tested it before bringing it to a gig. WHen I finally got it back this time, they assured me they had bench tested it for hours and it's definitely good to go now, but I haven't really played it a lot yet cause apparently I'm cursed. It's still working now, and I've played a couple of gigs with it but it was scary.
Did I forget one? well the point is, it's happened so many times I'm terrified to place my trust in a tube amp ever again. I think solid state and modelers are what I'm going to have to stick with from now on, especially considering how good they sound now. think i have tube amp PTSD at this point.