Hi Gordon,
This whole situation you describe is making me very uncomfortable.
First of all, I do shoot events, mostly certain types of sports, and work with a lot of organizers.
I'll only do so as the exclusive commercial photographer except at very large events where they might choose to have one photographer at a particular (and pre-designated) portion of the event and a second one covering another area. In these cases, I always try to arrange to bring the second or third shooters in myself... But, it doesn't always work out that way.
The organizers most certainly can prevent or control who is coming in and shooting their event commercially. I don't really buy that statement. Unless things are somehow very different in Canada. Public access is one thing. Commercial shooting and sales is another. The latter should be completely under their control, they essentially "license" the rights to shoot the event for commercial purposes.
You can't do much about a competitor bringing in their own photographer to do some shooting. That's a separate deal and one you can't really control. (The organizer actually can stop this, if they chose to do so. But it's a bit much to expect them to go against the wishes of their customer: The competitor). These photographers are usually allowed, with restrictions that they stick to shooting the competitor who hired them and not go off shooting everyone and everything else, and that they may not solicit sales from other participants.
You can't really do anything about news photographers coming in and shooting, either. But, they don't stick around or try to get good shots of each and every competitor, anyway. And, they don't sell a lot of prints. So, they really aren't a threat to your business.
I only offer still shots, and occasionally there's someone else doing video. I just don't worry about it. Again, this up to the organizer.
Finally, you can't do a lot about mom and dad or friends in the audience taking snapshots, unless the organizer places some restrictions on using flash, restricts them from access to certain areas (where you are allowed to go), etc.
Their image quantity request might be a little excessive, but may be sensible in light of the size of the event. I do work with my organizers and offer them limited, non-exclusive usage of my images. For one, any future promotion they do is good for both of us. Plus, they give me live links from the websites featuring my photos, which drive good traffic to my online galleries. And, I always get a lot of of promotion during the event, via PA system announcements, an ad in the program, and am free to include some of my my materials in their registration packets, etc. I also often get mailing lists from the organizer, or they do emailings on my behalf after the fact.
What really bugs me in your situation is that there's so little exclusivity. It's nearly wide open for poaching. Heck, you admit that you've done it yourself, so probably have a good idea how much business is being leached off.
Add to that they want a slice of the pie. That's adding insult to injury.
Boy, I'd be really tempted to walk away, unless you know for certain there's a ton of business to be had and they start to give you some better terms and more exclusivity.
I think it's very bad form to "pay to shoot" and set a very ugly precedent. Sorry you have to follow up on a photog who caved in to doing that.
If this keeps up and spreads widely, there may not be professional event photographers any more. The only people they'll get to come shoot will be kids with kit cameras with stars in their eyes who don't know any better or are just looking for the experience and to add to their portfolio. They won't have pro equipment or expertise. They won't have insurance, knowledge of safety issues or much business sense. And probably just won't get many very good shots with that 18-55mm f3.5 to f5.6 lens. They'll just be doing the job one year, gone the next. So the organizer will continually be seeking a replacement and best not expect that their customers, the competitors, will be very happy with the service provided.
It can be really hard to overcome foolishness of previous photographers, and I have to ask why he's not shooting the event any more? Maybe it wasn't profitable enough... after all they were milking from him? If he's out of the business now, it makes a good argument why you really can't accept their leaching of your profits and simply have to charge higher prices.
And, if possible, have you actually checked with him to see for certain that was his deal with them?
I can tell you that "pay to shoot" is not common here in N.Calif. At least not yet, at the types of events I shoot.
I have paid a flat-amount "vendor fee" at a large event, in the form of "booth space rent" for onsite printing and sales.
We actually had a professional organizer pay a fee for us one time when we were blind-sided by the "committee chairperson". This happened after the event had actually started and we'd been shooting for a couple hours. She told the committee chairperson "None of my photographers ever pay a fee!" Suh-weet! We offered to reimburse her, but she declined, so we bought her lunch!
I also have donated percentages of sales, but only for recognized charities in fund-raising situations (churches, local SPCA).
Fact is, it used to be the other way around. There used to be a "shooting fee" that photographers would charge to do an event, mostly to cover the basic costs of film and processing, that was paid by the organizer. With digital, that disappeared because of the misperception by both photographers and organizers that shooting digitally is "free".
Now it's swinging in the other direction, apparently. Event photography has already seen profitability dropping, due to rabid competition, more and more moms/dads/friends with cameras, people being more careful with their money in a tighter economy and more. I'm starting to think event photography might die out to a large degree.
It will probably still exist for kids who are "shooting for practice". And there will always be high end events where it's profitable.
But, everything in between these two extremes seems to be more and more at risk, less and less profitable, and feeling the pinch.