Thank you, Wayne, for the info.
I used the term "penthouse" but was forgetting there are 3 clasifications for penthouse on the Norwegian Dawn. You are correct in the cost of the AB penthouse being more than I wish to invest. However the AC, AD, AF are all doable and offer the stern location with the wider view, which we prefer.
Having reread your comments on the AB, however, it's easy to see how it would be an unforgetably luxurious stateroom.