Nope, annulments are done, in the vast majority of cases at no charge. It is not s simple matter at all, evidence is given on both sides and a tribunal of sorts makes a decision. It is NOT a cut and dried situation and proof must be presented to show a valid reason why the original marriage might not be valid.
That's certainly NOT how it used to be. It cost my Aunt thousands to get her annulment in the 60's. The only people who could get them were people of money.