there are no certain things about that subject. i seen some bounties that 2k at first but if i didnt sell that now its 40k . and some 1.5k at the begining and now just 50 box. you can never know whats gonna happen
Most of the time after getting my reward I usually hold it while the value still low, I always wait for the right time to sell it, while you have so why not grab the oppurtunity to let it grow.
I would hold it if the project remains as something that you are willing to promote. If you promote the coin then why would you get rid of it so fast?