I have a 4-cartridge printer (Epson C82), which I bought partly because it made sense. The mfr said you don’t have to buy an expensive color cartridge all the time. You just buy the individual cartridges (Black, Cyan, Yellow, Magenta) as they get used up.
Well, I do very little color printing. But all the cartridges are down to the same level. I’m using up each color cartridge, just about as fast as the Black.
Does this happen with other printer brands as well?