Beyond the 50 Percent Threshold Lies True Replacement Economics for Failing Units
https://urgentappliancerepairsac-crew-sac-near-church-of-god7357.lumenforgex.com/posts/staged-hazard-isolation-determines-whether-washing-machine-repair-saves-money-safely
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