The difference between tube and solid state has narrowed significantly in the last decade. Modern processors can now deliver an uncanny representation of the hallowed tube tone that, to an untrained ear, will be pretty much indistinguishable. Solid-state amps also provide a lot more flexibility for playing live, with direct outs and a base tone that doesn’t require lots of volume – which your local sound engineer will love you for.
That said, there is certainly something amazing about standing in front of a cranked tube amp and hearing that harmonically rich saturation. The analog nature of a tube amp makes it feel really alive and responsive in a way that, for an experienced player, can’t quite be matched by a solid-state amp. A lot of modern tube amps also feature power attenuation, which lets you attain usable volumes at home.
One criticism of tube amps that’s been around for a while is the weight. Coming in at considerably more than a solid-state equivalent, a tube amp will require some serious heft that can get tiresome when you’re regularly gigging. If you’re not happy lugging something heavy around with you at shows, then it's probably best to go for a solid-state amp.