Well, it seems like I've gained at least a little bit of trust and respect from you guys, so there's something I should probably tell you. I'm 14. I play the guitar and the drums, I'm in a band, I'm even starting to get into the world of recording. Music is my passion and I am considered the best musician in my school. I didn't want to announce this right away, because people never take me seriously if they know I'm just a teen. The thing is, being a multi-instrumental musical fanatic at the age of 14 isn't exactly easy. I've accumulated quite a bit of nice musical gear over the years, but money isn't exactly abundant for a 14 year old and it's hard to keep up with repairs and new equipment when I play two instruments. I've been saving up for almost 3 years now, and I want to make a good decision on my amp purchase because it will probably be my only amp for quite a few years to come. I'm proficient enough in the world of amps to make a relatively good decision on my amplifier, but it's always nice to have some advice from the pros. It really means a lot to me.
Congratulations and good luck with everything. If you're feeling overwhelmed by gear maintenance and expense, and would rather focus on developing your musicianship, then I'd humbly suggest that used amps with vacuum tube technology and no warranties are not your best option. Last thing you want is to buy something that will blow up and set you back three years' savings. If you buy a tube amp it should come with a good warranty.
Just my two cents. I'm not going to try to sell you on solid state but if you're going to the store I'd try to keep an open mind and just try everything. Cheap entertainment.