One thing I've noticed when I'm playing T3 is that there is a unit cost limit of 1000. Once players can afford that price tag (usually late T2 - mid T3), they can throw caution to the winds when designing new units.
Removing the unit cost limit will encourage players with a lot of spare power to watch what they spend. Also, it will use up more of the extra power that causes itself to lose value after a while.
Are there any flaws with this idea?

