Id be curious to hear what some of the bigger designers around the US think about it all who have been basically doing this for years now. Why are they not involved? Seems odd.
I'm not a bigger designer but, the course I just got in the ground I had asked them for a bid. It was competitive but certain things I was a bit wary about. First is that the tees need monthly dumps of sand. And I'm not talking small amounts either. Ideally, a ton of sand per tee per month is required (or at least that's what they told me). So that got me thinking, who's going to be doing the maintenance on this? Since I couldn't have concrete right off the bat, I went with rubber as it requires only annual maintenance.
Secondly, they require their designers to approve a course. Now this may be a great idea for many public parks and such, but for my situation, on a small 9 hole golf course, there really is only one design: go with the golf flow. Within that, there are small tweaks one can make, but I really didn't want to 'pay' for their design consultations since me and another highly qualified course designer were already on that path.
Thirdly, it's not really turnkey. Turnkey to me means that the installation is done end to end by one company and subs. If they actually came in and constructed the tees and got the baskets in, it might make for a more compelling offering.
Lastly, I make maps for a living, so there's no need there. In the end, I was able to shave ~ 5k off their asking by doing much of it myself. That was clearly the kicker and why I decided to not go down the DGP route.
In the end, I totally think what dgp is doing is great. The US needs more awesome courses, and having more of a turnkey solution is going to work in a lot of places. I think competition in the market is a good thing, and hope that it moves disc golf towards having huge events with lots of consumer interest.