You can read about it from the point of view of Scubapro founder Dick Bonin here (note that the formatting of the interview is messed up, it's a little hard to tell where the questions and answers stay and stop): Dick Bonin - SDI | TDI | ERDI | PFITidbits like this endlessly fascinate me. I've never understood how the dive industry works, and the workings of dive shops have never made much sense to me. This is really interesting, and informative. What else ya got?