Cathy,
When things are produced in large numbers the cost per unit goes way down.
Scuba is only enjoyed by a very small portion of the population, making all sales of everything involved very costly. People tend to compare the cost of this activity to other sports that have a much larger base and don't even require paid for training and certification. Some of the numbers stated for cost we're way off and opinion, but I won't go there. That is where the W & C comment was directed, but you only saw it as even, I saw it different.