It depends how you look at it. All 3 I found are for different guys. To give you an example, my riding partner retired from the Air Force as a Tech Sgt., then put in another 20 with Motorola, so he collects two pensions and saved his money. Just a regular dude that made the right moves.
I would likely not even look for the bikes or call in markers just for any rich dude. I have never made a dime off these bikes, and ocasionally even spent a few bucks of my own money, it is a service reserved for good longtime friends.
Personally I don't have the money or the desire to ride this type of bike, and I like understated things.
Yes, duration, and in particular intake closing makes a big difference. The reason lift is kept there is to make sure there are no issues while bolting the cams in by do it yourself types. Also the fact base circle remains the same as stock would allow the use of stock pushrods, assuming no modifications to engine stackheight.