First the airlines stopped serving complimentary meals. Then the price of airfare went up. Then they started charging you for baggage. Now they want more money to ferry your units from the factory to the front lines? From the patch notes for the latest Supreme Commander 2 update:

Transport build costs increased by 50%.

Among the other changes in the patch is a Universal Colossus who's easier to unlock and cheaper situational awareness technology. Also, gunships have been nerfed, which is part of an ongoing dance ever since the last game. It wouldn't be a Supreme Commander game without a series of gunship nerfs.