sentences:  Arizona Center was expected to be a retail, dining and entertainment magnet which would jump-start interest in downtown redevelopment, but some critics felt suburban-oriented Phoenix was not ready to embrace a downtown development of this caliber.Critics have also pointed out the relative scarcity of permanent upscale apartment and/or condominium housing in the immediate vicinity as a factor in the lackluster performance of the mall.Most of the residential districts surrounding the downtown area are middle-to-lower income, not adequate to support the middle-to-high-end marketing mix that Arizona Center set out to provide.