My reminder is that no matter who you are dealing with, there is one rule to keep in mind — money flows to the author and not from the author. If you are paying for services, you should be in control of them. You are the employer, or the contractor, and if you don’t have the authority as such, then think long and hard about whether or not the contract before you is one you ought to sign. If you are being charged for cover art, do you have the right to absolutely decline what has been presented to you — and at no charge? If you are being charged for promotion, do you have input into the kind of promotion being done, how it is being done, etc.? As much as we don’t like to think about it, writing is our business and we need to think about it as such.