The answer is personal preference. What sells well is what is being pushed in stores. Name One multi product company that pushes their worse sellers or often hold a display. Also have to consider the person doing the selling comfort level on a product. Most reps don't know a lick about a lot of products and just push the canned responses they learn from experience. You'll see it all the time especially those who are not eager for their jobs to learn every product they have. I don't buy into the conspiracy theories of Verizon intentionally doing it.