I will choose campaign. No money will be required to campaign and there is no risk. I earn good money by bounty. On the other hand, trading and gambling both are risky and capital required.
Talking nowadays that taking part in the campaigns you risk nothing is not true. I agree, you do not risk your own money, but you risk something else that can also be valuable - your own time. Some time ago I spent hundreds of hours translating the topics ANN and whitepapers, taking part in bounyt campaigns, unfortunately from a dozen projects, each of which offered thousands of dollars today, only 3 have been on the market and my earnings for these hundreds are only a few hundred dollars. If I devoted these hours to a different job, I would certainly go out better ...