 Some of these "early adopters" now own multimillion-dollar units, with as little as US$100,000 to $200,000 total investment.Newcomers to the building buy units for $600,000 to as much as $3 million, paying for the harbor and city views and also for the location.The more recent development of the adjacent Rowes Wharf/Boston Harbor Hotel, a landmark development of significant architectural and aesthetic significance to the city's skyline, as well as the expansion of the New England Aquarium, have made the twin towers even more desirable.