Towers shouldn't cost more stone than a TC

A tower simply shouldn't cost more stone than a town center, as the tower is worse than the TC in almost every way.

Now they are only ever made in Feudal Age, for the simple reason because TCs are not available then, and have no place in the game beyond that.

That's it, you can thank me now for saving you time by not writing up a 300 word essay about it.