this totally makes sense, as does all else you're saying - to those doubting there is a good chance that johtovillage has a fair bit of knowledge in this regard, to do what he's done you have to of done a fair bit of general research into the sport in the country as a whole rather than just localised areas.
When you have an estimated casual player number in the 10's of millions each year (source - from 2 years ago
http://sportsplanningguide.com/disc-...in-popularity/ growth since then has been huge) and only around 60000 players involved in PDGA sanctioned events this year, the in the know golfers might even be lower than 5%
If DD are paying anywhere near that amount for the stadium usage I'd eat one of my Jokeris... What Kanye West pays to sell out to a hundred thousand people(bit of profiteering from the organisers to begin with and then costs including security/first aid/ all the other expensive bits etc etc. rather than the actual location hire which is relatively cheap comparatively) and what a local company pays for a few hundred people to play around will be very different things.
Whilst Innova might be able to open the cheque book to a six figure sum for the World disc Golf tour with the media exposure that will have (lets face it it's going to be live tele in Finland again for some of the events) , no manufacturer is going to be sinking that sort of money into marketing of a not particularly well publicised outside of the local area event - they will recoup their costs from the entrance fees and disc sales around the event. I would be willing to bet the figure to rent would be no more than $20,000 for a days usage (and i doubt it is anywhere near this high) . To rent comparative sized Premier league grounds (soccer grounds in the UK) for the day for events is around £10 - 15000 and we are stupid expensive in this country.
A huge amount of discs purchased will not be for individuals it will be for clubs/private courses/schools/coaches for hire, this is a market innova and Discraft have pretty well sown up from their longevity in the sport - I would expect the numbers of these sort of discs to come close to matching the amount bought for individual usage and will be a figure that looking through other players bags on the course will give you no insight into.