I think it might be a good business, but It really depend where you are located... I have a hard time to picture such thing here .. but who knows.. hehe.. big investment..
also I wonder why they always print with that old Zcorp tech.. so expensive, so dirty, so much pollution.. Mcor makes one with better color and using only regular paper..
btw, I am not related to Mcor in any way..
h/