There are some excellent points in this thread, such as:

The problem with F6B is that Goldwing guys like Goldwings, not F6B, due to extras. Heated seats, grips, reverse, cruise and more luggage space with passenger accomodations are all factors. Cruise guys like cruisers, which F6B is not. Sport touring bikes are lighter and have removable luggage.

So, F6B is not really in any one category in my opinion. It does many things well but this makes it a niche product.

I have had the exact same thought. The F6B is quite a transition from a cruiser, which I think was the intended market. I appreciate Honda offering something completely different than just another bored-out twin model. That's why I bought it over the Victory CC Tour - the engine.

I gave up a lot of features on the Vic to get my hands on the flat-six and I have been happy with it. After a 700 miles trip on a Vtwin last summer, I knew I had to get a smoother bike. However, I still like the cruiser style. The F6B is really the only option available for people who are looking for that.