Many bounty campaign give token..often token bounty has not been paid .. you already exist in the market .. after the price paid it down drastically ... if we hold the token .. later will be able to rise or even added down the price of token bounty
I hold my tokens in most of the cases. because i spend more and more time to the selection of ICOs and participating on it. you can also sell your tokens and trade, but i am holder of ICO tokens