DavidHickey:Harry the equipment boy sounds a little fishy to me. Hmmm half price equipment, likes to party and drink beer and eat pizza with the student customers who hes making little to no money on. Did it ever occur to you that the school instructors may have had a run in with him previously and were trying to protect you from getting ripped off?
You never know - it might be that the guy banks on selling to a whole class at very low margins to make his money. After all, if he can sell ten drysuits at $100 profit each that's better than just selling one at $500 profit.