Updated April 2026 · Written by the team at Integrity Storage in Portage, MI If you're searching for a storage unit in Portage or Kalamazoo, Michigan, you've probably noticed that "starting prices" advertised online almost never match what you actually pay six months later. Some facilities raise rates after the first three months. Others lock you into 12-month "rate guarantees" that quietly expire. A few jack rates 10–15% on existing tenants every single year, banking on the