Why do the Instrument and Commercial courses cost more if taken in the Professional Pilot course?
Actually they don’t. The Professional Pilot course is designed for a student with no flight experience. The Instrument rating requires that the pilot have a minimum of fifty hours cross country experience. During your training for the Private license you will log some cross country time but not fifty hours worth. So there will be a need to do some hour building after the completion of your Private license. The price for the individual course assumes that you have already met the hour requirements. It is the same with the Commercial license only instead of cross country time you will be building total time.