Hy man.
well here are a lot of things to discuss.
Doing bounty takes time and "brain juice" (as Cedric Dahl says always). So it depends how valuable is that time for you.
On the other hand, it also depends on how much money are you willing to invest.
Bounty campaing may not be payed out at all. You lost only the time that you invested. It depends if you see it as a lost or not.
Investing money can make you lose them all if it's a scammy project. So it really depends on what type of resources you have (time/money or both) and how you are willing to invest them.
The best case scenario is to have them both and invest them both. If you really like a project and believe in it, invest money in it and also do bounty to rest assured that more people hear about it, invest in it and eventually increase its price when it hits the market. Also you get payed for doing bounty.
One such project that deserves to do both, bounty and to invest in it is #Blocnation. A great concept of integrating blockchain with private events. No more credit cards or cash: meet BNTN, the token that's used to pay for your drink fast and easy thanks to their bracelet.
Check out more here at this demo video:
https://www.youtube.com/watch?v=diRkuwcGWh0&t=3m54sAlso check their website and see if you like it:
https://blocnation.io/