My estimate is based on an additional 24 dives AFTER ow..I do not know the exchange rate US $ to Aussie ..Yours is based on 12 dives..standards only allow 3 dive per day,for training purposes usually.The reality is I only do 2 training dives per day ,so rentals at that rate are 12 rental days-$600. rentals alone..We are talking about training cost to actually dive,so a class like equipment maint is not in the mix,and for that particular course i don't know what is inexpensive about it,I charge $200. for a minimum group of 2 to do it and for 1 to 1 I charge $300.Works out to $15. per hr pay doing it 1 to 1.As to people buying gear even if they do not take course,that is not entirely true,if you do not provide a need to purchase they usually do not.The estimate I gave is for everything-training and gear purchases-rentals-access fees to boat/quarry,and as I said I even lowballed it.Your estimate is not too far off if you had double the amount of dives as I estimated and had boat fees added in too.
Diving education should not be cheap and thats where alot of instructors fail and to make up the difference they may cut corners and violate standards.I feel that I am totally worth what I charge and then more.Don't want to pay it,ok tell me what you want and maybe I can work out an alternative program for you that will make you happy,or go elsewhere..
Must work because just this week alone I have 1 ow course with 2 private students,another private course this same week with another 2 students,and I am starting another ow class for the lds I work thru with 7 students.This is also our SLOW season here in NY.(I am very surprised at how busy this is for me, being that I do not do this 40 hrs a week as a full time job)
I also have a group of 9 going with me to Bonaire May 3rd,and completing ow training dives there,along with advance ,nitrox and photo specialties.