Beyond the 50 Percent Threshold Lies True Replacement Economics for Failing Units
https://www.livebinders.com/b/3720293?tabid=25ac9385-95f4-1384-a63a-e2d5796f7890
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