Matt, at this stage of development I totally concur with your last post. However I do feel that we are at an early stage of development and mainly through the bling factor and the marketing mens desire to be one up on the competitors, it will become rightly or wrongly defacto for all new designs.

When I was playing around with gliders in the 80's the big new thing was "winglets", huge huge debate on their worth at the time but they did prevail and all new designs have winglets of some form or other now.