gee you're 53 years old and still want a 100 watter?
I'm 51, and find smaller amps for my liking. I say gig with larger PA system.
My ex-drummer and former friend played really loud for his own good even during rehearsal. Our equipment was no less than a half-stack. Then after that band, I used a half-stack and it was sufficient. I still think it was more than enough.
... I haven't played in a band for a while but recently during a BarBQ get-together, we brought our acoustic, smaller amps, bass direct in the mixer, all mic'ed except the bass. Yeah, the PA system was big. We could be believe we sound WAY better than those loud rehearsal. So we thought that was the key, mic your smaller amps.
For you headbanger members, you guys do need your stack for reputation and the look. :wink:
... anyway just a thought.