Board Thread:Questions and Answers/@comment-26009886-20150224134002/@comment-25889587-20150224134128

I think you should sell them. If you have lots of coins you can buy them (For example, coins, energy boosts, cookie relay, etc) at any time. Only crystals cannot be bought freely (unless through IAP). I sold every non-crystal Power+ treasures except for the Halloween hat and lotus flower.