Retaining 10,000 pages of documents for 10 years in the Philippines will now cost around USD 5,800 stored in business districts like Makati, Ortigas, and BGC. The document outlines cost saving options like off-site storage with a records management company or digitizing documents after 5 years and disposing of physical copies to reduce storage costs. It also recommends tracking legal retention periods and destroying expired documents to further reduce costs.