I’m back with a new idea

Chocoguy

Perhaps there could be a feature where you can trade in boosters you have for gold bars. Kinda like a refund system of sorts.

Alienscar

Hello @Chocoguy as a lot of boosters are obtained freely by just playing the game it doesn't really make sense for King to allow you to exchange them for something more valuable.

Additionally your idea has been suggested before and as you know duplicate ideas aren't allowed

https://community.king.com/en/candy-crush-saga/discussion/329293/sell-boosters-to-get-gold-bars