A few times Venture's calls have been answered, and each time resulted in fair trades. But not always. When she got her bandana and war paint, all it cost her was a bottle of scotch.
For Venture, her crowbar is her life. Worth it's weight in gold, she would have died without it a thousand times. And all it cost her was a can of beans.
Venture knows first hand that anyone who falls into the 'Poison Trap' will die a slow miserable death. And all it cost her was the ability to run in the colder months.