Whole RGBI output was a big mistake imo, monitors internally have fully analog RGB path, so why not use it? Imagine if CGA cards had full palette control from

Whole RGBI output was a big mistake imo, monitors internally have fully analog RGB path, so why not use it? Imagine if CGA cards had full palette control from the start. Four 74189 16x4 bit SRAM chips connected to R2R resistor ladder providing programmable 5-6-5 RGB palette. Would add ~$30 to the BOM in 1981, but SRAM prices fell drastically at that time, two years later it would be single dollars.