mobow - great thread with a lot of great points but there's only one problem with it. Your average HNI user, someone who is a registered and contributing member, is not entirely influenced by what the "pros" use. The guys on this site are not your average Joe hunter who wanders unknowingly into the local sporting goods store a week before the season and picks up a pack of Brand X broadheads because they saw someone using them on TV. The majority of people here make their decisions based upon personal experiences, and for a large part the experiences and recommendations of other hunters just like them.
So in the end your results from this question are going to be just what you want to hear - the people here think that flip-flopping between brands is stupid and degrades the credibility of those that do so, and they don't make decisions based upon what they see people hawking on TV or in a magazine.
Now get inside the head of the other 90% of the hunting population when they're making a purchase decision while standing in the aisle at the retail store and you'll soon find that as withmost thingsin life, perception is everything.