It cost about twice what a comparable, cartridge-based printer cost at the time.
CIS (https://en.wikipedia.org/wiki/Continuous_ink_system ) were around for a long time, and a popular mod amongst high-volume printers, especially Epsons, after the cartridge chip DRM was defeated[1]. They definitely cost less than the printer. I suppose Epson eventually found it profitable to do it themselves and sell with a warranty, that third-party CIS often didn't have.
CIS (https://en.wikipedia.org/wiki/Continuous_ink_system ) were around for a long time, and a popular mod amongst high-volume printers, especially Epsons, after the cartridge chip DRM was defeated[1]. They definitely cost less than the printer. I suppose Epson eventually found it profitable to do it themselves and sell with a warranty, that third-party CIS often didn't have.
[1] https://news.ycombinator.com/item?id=25054177