Charging a lot for a Dan test should not be a problem if what you offer is comparable to what you charge.
For example, if you charge $500 for a 1st Dan test, and your school is run by someone who has very little, if any, credibility outside a small circle, that could be a problem.
If you charge $200-300, but you get recognition from an internationally known body, a test overseen by many legitimately ranked master instructors, and a certificate issued by an instructor with international credibility, I really don't see that as a problem. I'd be willing to pay for that.
My analogy is this: Harvard costs an arm and a leg to attend. But when you're finished, you have a diploma from possibly the greatest school in the country.
For example, if you charge $500 for a 1st Dan test, and your school is run by someone who has very little, if any, credibility outside a small circle, that could be a problem.
If you charge $200-300, but you get recognition from an internationally known body, a test overseen by many legitimately ranked master instructors, and a certificate issued by an instructor with international credibility, I really don't see that as a problem. I'd be willing to pay for that.
My analogy is this: Harvard costs an arm and a leg to attend. But when you're finished, you have a diploma from possibly the greatest school in the country.