When I booked Getaway, the forward penthouse was the cheapest suite on the ship. I flirted with a spa suite but with 100 more square feet I booked the penthouse. I added $400 for spa passes and the penthouse then was equal to the spa suite price. Then I was offered $18 more per person per day to upgrade to the Haven Penthouse. This suite just looked like a fancy balcony cabin to me so I stuck with the forward penthouse.
So the pricing was Haven Penthouse most expensive, then Spa Suite, and Forward Penthouse the cheapest.
But I think with the popularity of the forward penthouse and its size things have flipped. Now the Haven Spa Suite is the cheapest suite on the ship followed by the Haven Penthouse. The forward penthouse went from the cheapest suite to now the 3rd least expensive suite on the ship.
I could "upgrade" to a Haven Penthouse and save almost $400. Being in the Haven is nice but is it really an upgrade? The Haven penthouse is much smaller and does not even have a separate tub and shower. It also has no dining area, dining table and has a standard balcony sink in the bathroom. Several months ago, NCL wanted $36 more per day for this suite. So I guess it is no longer the upgrade.
March 2009 NCL Jewel - Western Caribbean - Balcony cabin
January 2010 NCL Sky - Bahamas - Penthouse Suite
December 2010 NCL Epic - Eastern Caribbean - Penthouse Suite
October 2011 NCL Sky - Bahamas - Balcony cabin
February 2013 NCL Epic - Eastern Caribbean - 2 bedroom Haven suite
February 2015 NCL Getaway -Eastern Caribbean-Penthouse suite