Experience and skill obviously play a large role in price. As with any industry, the better you are, the more you can typically charge for your services. This is especially true if the provider, in this case a ghostwriter, is in high demand. For many ghostwriters, their time is limited. The main way they are able to increase their income is by maximizing the amount they are paid for that time.
For clients seeking lower cost, but still high quality writing, it may be possible to find a relatively new writer. One looking to build their stature in the industry. Perhaps this writer is in low demand at the moment, but still very capable when given a chance. This is possible, but can lead to struggles. For example, when a writer has little history it can be difficult to predict quality and also timeliness and other factors. Learn what ghostwriters typical charge.