Out With the Old, In With the New

So, recently I've learned that in order to maintain a Tube Amp, you need to change the tubes periodically. I think this is a waste of money and the amp doesn't sound any better than a solid state amp so I will be selling it. Also I will be getting rid of an old flying V guitar that has active pickups...I can't stand the fact that the guitar needs a BATTERY to play. Very uncool in my opinion. What if I suddenly run out of juice in the middle of playing and I can't continue because my guitar needs a new battery? I think it's another waste of money considering the cost of batteries now a days. Maybe I'm just venting...I think I'm a conservative guitar player. What do you think?