Hey there, I recently bought my Vox VT40+(amazing amp), but I'm not really hear to brag or talk about that. I was wondering what are the main differences between solid-states and tube amps?
Gear :

Jackson JS32T King V
Vox VT40+
Stagg C542
one has tubes, the other no tubes.
2002 PRS CE22
2013 G&L ASAT Deluxe
2009 Epiphone G-400 (SH-4)
Marshall JCM2000 DSL100
Krank 1980 Jr 20watt
Krank Rev 4x12 (eminence V12)
GFS Greenie/Digitech Bad Monkey
Morley Bad Horsie 2
MXR Smart Gate
In the end it's preference. Some bands even buy tube amps and have their distortion channels modded to sound more solid state. Dimebag played solid st ate till a few years before he died. I do honestly believe a solid state distortion is great for metal, but a tube clean is better for blues, jazz and rock. Tube amps are usually warmer, which is a preference of some(not me).

Everyone is going to pump tube amps down your throat, but go in with an open mind.