They will not languish around in the showrooms for years. There are a lot of well to do Harley lovers that will buy that bike. If you were into practical you would really not buy a bike at all, let alone a Harley.
Its also about taste. There is no right or wrong. Ask a large group of Harley folks what they think of the looks of a Rocket 3.
They think its just a little uglier than a Victory Vision.