Christi mentioned they buy them (to replace what has been used) as needed. I think the dive ops refrain from using them to refrain from buying them. It would appear like it's money in their pockets if they don't use them. I could care less, either way. I just like to point out to dive ops that are critical of others that they might not be completely towing the line.
Nope - not money in anyone's pockets because we are accountable for them regardless. For example - if we run out of bracelets on a Friday and can't buy them until Monday, then when we buy them on Monday, they retain what we used during the weekend. Regardless, I can't imagine a dive op trying to profit from the MP bracelets, we are always accountable for them and not buying bracelets is not worth risking our permits over.