You will only know the value of the coins you are holding if you made much effort to earn it. The same way goes to bounties, if you have made much effort to complete the task required to get such a small stake then you will realize that it is never easy to earn such token/coins. By then it is on your decision to sell the coins/tokens you have whenever it is available or just hodl it waiting for its value to increase.
Each bounty is paid about differently, there are generous projects that shoot, and there are times where you spend a lot more time and you get an order of magnitude less! It is better to study the project itself where you participate, if you see that it is promising, then it is better to hold, otherwise of course, sell all or part!