How Legacy Monoliths Drain $500K+ From Retail IT Budgets — and What CTOs Can Do About It
https://mag-wiki.win/index.php/How_a_35%25_Drop_in_Total_Ownership_Cost_Appeared_in_Year_Two_for_a_Marketplace_Platform
Legacy platform maintenance routinely exceeds half a million dollars for mid-to-large retailers The data suggests this is not an outlier