Beyond the 50 Percent Threshold Lies True Replacement Economics for Failing Units
https://urgent-appliance-repair-near-land-park.image-perth.org/buildup-issues-account-for-80-percent-of-dryer-failures-but-guarantees-protect-your-investment
Most refrigerators last 10 to 15 years, but the real replacement decision hinges on the sunk-cost risk of over-repairing past the 50% rule: once repair costs exceed half the price of a new unit, continued repairs expose you to repeat-failure liability