I'm with ya, I think all of us are in agreement that DP's are not the answer. Its a tough puzzle to solve, we love the high tech LMP1 cars, but then you have conpanies like Audi come in and spend everyone into oblivion, and the result is what we've had in the ALMS for the past several years, very thin proto grids. I also despise the Audi approach of showing up for one or two races a year over here, and then leaving the series high & dry the rest of the calendar. With the DP's, they're loud & physical, but they're not a true protoype, very much along the lines of how NASCAR goes racing, spaceframe chassis, big V8's, lots of beating & banging, but not true sportscar racing.
I don't have the time in you've got, but I've been around. Started with Can-Am and Trans-Am in 1971, been a regular at places like Mid Ohio, Road Atlanta, and The Glen ever since, for everything from Can-Am, Trans-Am, F5000, IMSA, CART to the AMA Supers, and vintage bikes. I'm a veteran of forty Indianapolis 500's, made seven trips over to Le Mans, a bunch of GP's (both two and four wheeled) a couple of Daytona 500's and about nine trips to the spring Cup race at Talladega, and countless days & nights at midwest bullrings like Eldora and Winchester (we're going up to Eldora next month to see the USAC Sprinters).
Fax