Butler doesn’t have dealers anymore.
But that’s beside the point. It’s a good sounding amp in my opinion, especially for the money as they can be found for under $1500 used. But it’s a small company, guitar pedals seem to be the main business and it’s basically BK and his assistant. So... if that ever changes one could be SOL. Lots of small companies like that.
The Monads, if you want to go there. I agree, way, way, way overpriced. Cool looking, but not special enough to justify the price.
I would agree that BAT amps are excellent, a used one under 2k would be an excellent purchase for the OP.
A used BAT VK200 would be outstanding, I sold mine last year for 1k, I wanted to keep it as I felt it punched way, way, way above it’s weight. Ballsy as all heck in the low end. I think the Butler Top end has a bit more sparkle, I think the VK200 is a better amp overall.
Classe, depends on the amp.
I’ve owned all of the above over the years. (except the monads)