What becomes of art collections and wine cellars that can no longer fit in newly downsized living quarters? In Manhattan, they most likely end up in high-end self-storage facilities, one of the few types of real estate seeing an increase in business. In December, two luxury self-storage facilities — Cirker and Hayes — merged to form Cirker Hayes, which now operates a combined total of 200,000 square feet of storage space in Manhattan. The company, […]