Goldback works with the state governments to ensure legal protection from the feds. Hense why they only issue goldback in gold friendly states.
They are expensive to make since they could be almost double over spot, but it is the best solution currently for fractional gold in the form of a usuable currency. Adoption seems to be picking up, but slowly like bitcoin adoption was in the early 2010s.
Make a post or comment in the community and ill make you into a mod