Sure people are paid to do the work. But a quick look at the website lets you know there are only 8 people working there. A few years back there were 14, and there was no where near the marketing effort for the industry being made back then...see the Be A Diver campaign for more.
I disagree with you about non-profit being "just a tax designation." The trade-off for receiving non-profit status is the legal obligation to put funds back into the industry in which the non-profit functions. The IRS does scrutinize that...and you can bet the members do too. As to the "considerable revenue," let's do a little computation shall we? Let's call it 1,500 exhibit spaces sold at DEMA Show...the cost of a booth is about $1,800 (which, by the way is below average for the convention industry). That adds up to $2.7 million per year. They have member dues revenues, but I'd bet those were 10% or less of their total revenue - 10% is pretty average for associations. Compare that to a diving manufacturer that generates between $25 and $50 million per year in revenue in the US alone - go look at a Johnson Outdoors Annual Report and see Scubapro's...they do closer to $90 million worldwide each year. Hardly seems fair to blame the ills of the industry on such a small entity as DEMA, does it? And you ask what they do with the money? Look at the DEMA home page, and scan down to the links to the Be A Diver program. I haven't seen any marketing program better in any recreational industry, and I am pretty well versed in those types of marketing efforts. Take a look at the "Promotion Guide." That lists all the goodies available to DEMA members. And the marketing plan is more extensive than anything I ever saw from any of the training agencies - or from past DEMA staff, for that matter.
Look I am the last one to say that DEMA is perfect. I just think the industry has a totally wrong impression of what DEMA does. I also think many are unfair to DEMA, just because they don't happen to agree with the direction they take on some issues. The next time you are able to resolve a problem between a manufacturer, a training agency, some big magazine, a retailer and a dive destination, and everyone is happy, you just let the world know, ok?