When I got certified back in 1985..... Is irrelevant....
But yah, in this age they make it so hard to compare because everyones offer and pricing is a little different. We as the consumer have to change apples, oranges and grapes all in to one wine we can compare.
Bottom line, we need a price to get our piece of plastic.
BTW, I paid $50 and had to supply my own mask, fins and snorkel...out the door.