Restocking? Missions? Bloody hell, there's always one.
Sure, by all means, do everything you can to win. Alternatively, don't.
The restarts have zero cash for a reason. Regens can turn the tide of the battle completely. The idea is that you have a continuous battle with reinforcements incoming constantly...but who could be bothered if people are actually going to such lengths to gain an upper hand.
I'm waiting for the "Dragon is overpowered" thread.