I attended a 3-day class with a well-known machine embroidery instructor and it cost $300 per person. There were 24 attendees in the class. The organizer had to furnish air plane fare, car transportation, hotel room (5 nights), lunch & dinners and instructors fee. I stayed at the hotel because I didn't want to worry about car trouble and considered it my vacation that year. For me -- it was money well spent because I learned so much.