I’d say last option for trade opportunities
Utopianism was created by Sir Thomas More. Utopianism is defined as "a community or society possessing highly desirable or near perfect qualities." However, this can be used to describe a society that is aiming for this or fictional societies. The word can be used across many different academic spheres, such as economics, ecology, politics, history, science, technology,religion and feminism.
It was much lighter and easier to carry unlike the coins they normally used.