Imagine you need a service that your home state (State A) provides to its residents, but only in a limited capacity. State A requires individuals to meet certain criteria to qualify for access to this service.
Unfortunately, your home state says you do not qualify.
Fortunately, State B, which, for all practical purposes, provides an identical service, says you do qualify. The only rub is that because you live in State A, State B is going to charge you three times more.