While we have been to Nantucket several times, we have always stayed with
friends. But, I know that the island is getting more and more crowded
every year and more and more expensive--especially the restaurants. I
would guess that the running rate for a room with breakfast is circa $200
a night. I checked the site below which has a long list of places to stay
and would be a good place to start your search for a place to stay. Keep
in mind that you will need a bicycle to get around the island. I think
having a car there would be a disadvantage.
The only thing harder to find than a room at this late date is a boat
slip :-). I may be going there the 21st of this month for a fishing tournament.