If the customer requests a 2008 model aircraft and they want to be part of the "test flight program" then so be it. I certainly know what I would prefer to strap my backside to and that is a tried and tested model or type.
Take the upper end of the technology ladder. Good point about about the Concord. The Russian Soyuz launch vehicle is a tried and tested vehicle and safe. How many has the space shuttle killed?
As for Netjets drivel, well a company that spouts out of all it's orifice's that "we have the best pilots" and believes it then nothing that comes after would be surprising, would it?