Fighters should pay support!

[Q]

I prefer the way it is with no maintenance cost for fighters because:
- To use fighters really efficiantly you need carriers, which cost maintenance.
- In a combat with fighters you will almost always loose some units, which have to be replaced and will therefore cost you resources. Not to mention the effort to bring them from the colonies to the front line. With ships it is very well possible to win a battle without losses, or even if you get damaged ships, you can repair them for free.
However as usual the best solution to this debate would be as proposed to have values in the settings file for all units separately, where you may choose the maintenance cost from 0% to whatever you like.