Interesting question, Harry. I was wondering the same thing. There seems to be a lot of gray between the definition of a "show" and a "contest". Why do they call them "dog shows" when the dogs and their handlers are clearly competing for an award? The same thing goes for many "car shows". Something gets judged and an award is given.
For the longest time, the NNL West in Santa Clara only had a "People's Choice" award. That was it! The attending people, not a set of judges, picked their favorite model by ballot and the award was given at the end of the day. Over the past few years we've added "favorite picks" by magazine "A", then magazine "B", NNL host "A", then NNL host "B"… It doesn't affect me personally if I get an award or not, but in doing so, it does start to move us away from the original intent of the NNL which is "show only".
I think that part of the motivation for the "award" session is tied to the sponsor's desire for recognition and the adjoining swap meet that helps cover a significant portion of the expenses associated with conducting the NNL. The awards often draw in some of the more accomplished builders, and by keeping people around for the awards given out at the end of the day, you promote additional sales at the swap meet tables.
So with all of that said, my vote is for anything that is designated as an "NNL" event should be "show only". No awards of any kind. Anything that provides an award should be called a "contest". That way we eliminate the gray and no one gets a false sense of what the event is for or about.
Regards,