It's true that some tube amps require more maintenance than others, but that's not really always true. Some are notorious for being somewhat unreliable, and others are famous for being more or less bulletproof.
Reliability aside, tube amps definitely
react differently to all the minor inflections, nuances, dynamic changes, and so forth... When you play a guitar through a tube amp, you're also playing the amp, not just the guitar. Maybe your ears can perceive the difference, maybe not. My ears can and do, but I can also
feel the difference. And let's just be honest: nobody is throwing amps of any kind down any stairs anywhere, unless your name is Glenn Fricker and you're doing a segment about how bad Line 6 amps are lol (funny enough, I just tossed a 15W Line 6 Spider III in the junk pile out back, waiting for the big spring cleaning purge when I'll make a trip to the landfill. Seriously, I hated that thing.)
Now, that all being said, there are some really good SS amps out there, and they sound great, to the
listener. The
listener may not hear the difference, but the guy
playing the amp can sure as

tell the difference lol....and maybe he doesn't care.
Just play what you got, and have fun doing it.