I can get either amp new for $800. I really like both of them. Obviously I like the portability of the Mesa better. My question is which is more durable? Which is louder with one Aguilar 12" cab? (and future cab extensions) I realize that some of you will say the choice depends on the sound I am looking for, and I agree. But I like both, and I do not have a well defined tone that I am looking for yet, but I do like variablity. So the question is more durability, reliability, volume.