Does anyone do it? If so how much? I always do it but I am not sure I see the benefits. I have loads of supplies but not much money. It seems that I barely have enough money each turn to buy 10 railroads, 5 river transports, a brigade for the western armies and a brigade for my eastern armies. At this rate I will never build my Union armies up to their real life sizes, not too mention have any form of a blockade in place (brown or blue).
What do you guys do? I know that I must be doing something wrong.