No I don't (and I like the "Porche" ananlogy very much!)
A hundred or even 200 fps doesn't mean much in actual hunting situations, they kill as well, shoot nearly as flat, and allow for tempature variables(meaning a "max" load won't be over max when the temp is "up" nearly as easily)
For example, kill a deer with a .300 savage, then kill a deer with a .308 at the same distance, tell me which is "more dead"???
Though there is a measurable differnce in the fps, they both kill, and I haven't found anyone that would say the .300 Savage isn't a good killer!
Brass lasts longer, less stress on the rifle, and many other reasons tell *me*, that "under max" is "more better" most times at least, and yes it's cheaper as well!