Prep Expert courses cost between $299 for their weekend review courses and up to $1,099 for their 6-Week in-person prep courses. Most people go for their $799 6-Week online prep courses, which should last for 72 hours in total and come to a cost of around $11/hour, which is reasonable (there will of course be many students taking the course with you, so you won't be getting 1-on-1 help).