Beyond the 50 Percent Threshold Lies True Replacement Economics for Failing Units
https://www.livebinders.com/b/3720218?tabid=8eee9fdb-5304-9e3d-894e-612dbbf06388
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