Gold Conversion Idea

I have maxed out all my towers, waves, troops and everything else. The issue is that I am getting gold but can’t spend it anymore, except the daily donations which is a small 1.5M. Can there be a feature that converts your gold to gems, vouchers or pearls? 



There is a granny shop where you can buy items. Those items you can convert into pearls.

Granny is there with a shop. Spend all your gold there. Watch a video and boost your blacksmith and enjoy the pearls. Problem solve. Next