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However, at the end of the 10 years, the home owner sells the house and recoups some of the initial additional investment costs. Depending on the residual value estimation approach, the present value net cost savings in life-cycle costs to the homeowner is either $41 714 or $84 997.
page: 23 of 27 Using Total Cost of Ownership to Determine Optimal PC Refresh Lifecycles appendix 1: methodology data gathering In 2009, Wipro PSA consultants and technical architects surveyed CIOs, IT directors, and senior IT managers at 106 companies with headquarters in North America and Europe.