It seems to me that the higher building cost makes their placement more strategic. It also gives a reason to sell one and rebuild it somewhere else as your army makes its way deeper into enemy territory.
It makes you think twice about just building a lot of factories... Are you far enough from your core? Is it worth building a new one? Should you sell an existing one to make another etc? etc...
Also, it paces down the early game a tad (well the cost increase to various things, not just buildings)
All in all, I kinda like the changes.
Last edited by Galaad; 22/07/13 12:21 AM.