I personally don't get the infatuation with tube amps. I had one, but later built a 80W transistor amp. I'd take solid state any day.
I have played/owned both tube and solid state amps for 40 years... Wow... I am getting really f'ing old.
I played on a Marshall Plexi with a variac for years when I was a kid. During the 80's up until about 1991 I played a GK250RL solid state 100 watt stereo head exclusively.
In 1993 after 14 months of trying to find the sounds in my head available in a commercially available amp I landed an endorsement deal with RIVERA Amps and have played my all tube 100 watt Rivera Knucklehead since then.
About two years ago I picked up a smaller Fender single 12" all tube Hot Rod Deluxe Limited Edition because I wanted something with a little less power.
Tube amps are pure... They follow the harmonic scale in proper progression as they are overdriven.
Solid State Amps do not follow the harmonic scale in proper progression and you end up with some serious oddities and problems as you crank them. In my opinion that is why they always offer more wattage with SS Amps.
I also find that with a Solid State amp you only have a couple options.
So you have to bounce back and forth from channel to channel or have a bunch of noisy pedals in front of you.
With a tube amp you can have the amp cranked and simply back off on the volume knob on the guitar to achieve your Clean and/or overdrive and/or distortion. I rarely see a guy with a Solid State Amp ever touch the controls on the instrument...
For me that works better in the long run.
As far as reliability goes... I see no difference. I can destroy a Tube Amp on the road just as fast as a Solid State Amp
There are my proverbial 2 cents