We were on the Star last September and my recollection is that the prices you quote are correct, only they are in cents
and not dollars! We had quite a bit of laundry done and it was only a few dollars. They pick up the items in the morning and they are returned to your cabin the same evening. Also, they did a fine job on them.
I believe that the Sun is the same design as the Star and I can assure you that you will enjoy every moment on board.