I think some o defensive buildings are too expencive or maybe too cheap. For example I think hidden teslas are way too expencive. Their mximum lv. Is 8 the same as mortars, but upgradin teslas to lv. 2 is almost as expencive as upgrading mortar to lv. 6. The same is with wizzard tower. It is too expensive. And the archer tower and cannon should have the same price for the same level I think.
