In my area we can win or lose a bid for as little as 50 dollars. That being said most of the new services I put in are aluminum, if aluminum branch conductors were to be available again there is no way I would install them! No amount of data from so called experts can cover experience in the field. We have all seen some prety hacked up copper installs that are still working fine, we still have miles of knob and tube in use around here, so copper is prety easy to install and make it work. Aluminum on the other hand, have to use anti-oxidant, have to use Co/Alr devices, have to use special connectors etc etc.... The choice is clear to me branch circuits will always be copper!
