Tom, you are correct in that it is "that it is not necessary", and I have long held a belief, backed up by considerable research, that no sale happens unless the customer 'has a clearly defined -NEED-' for the product.
Good luck with your project, maybe you would do better with less resistance if you had a 'storefront' here on forkliftaction, rather than try and advertise in the forums [where push-back and 'peanut gallery comments' is more or less the nature of things].