During the first few years the Galaxy was open, its 57 different apartment models, each with an odd-shaped floor plan dictated by its location in the beehive of its tower, rented for an average of $800. However, there was not a sufficient market for luxury apartments in Guttenberg, and by 1979, less than half of the first two towers had been rented. The interior of the third tower, the last to be built, had not been completed and the building was vacant until demand caught up with supply. That same year, Belfer dissolved his partnership with Prudential, due to differences between the two. Prudential took over the complex and made some improvements, including the installation of new windows, renovation of the lobby and hallways and the purchase of a 17-acre parcel of waterfront land below the Galaxy that had been used for the processing and storage of peanut oil. Rents were restructured between 1979 and 1980, resulting in an increase of more than 300 tenants before approval was granted in 1980 for conversion to condominium ownership.