It's worth it to collect a coin at this time with a bounty. Because in a few years from now, market volume is rising. In a few years, it will be very important.
I hold a few bounty coins and I will confidently tell you that most bounty coins are worthless. But if you must waste your time pushing your luck, only engage those bounty projects with existing businesses. You may want to try out the mb8coin.io Its bounty and ICO ends on Nov 5.