I print with an Epson Ecotank ET-8550 which uses bottled ink and I’m happy with the results I get.
People overstate the benefits of third-party ink, tests show that it is frequently awful in performance
http://www.wilhelm-research.com/epson/WIR_Epson3rdParty2007_...
the OEM ink is expected to last 100+ years but some of the third party inks fade in 0.2 years, none exceed 3 years.
Inkjet printing is a serious hobby for me, I print a large number of “three-sided cards” which are intended to be displayed bare (no frame, no glass in front). These are super-low cost (no frame!) so I do expect to replace them frequently, but one ink/paper combination I used faded notably in three months, which I could not accept.
I am always reading accounts of people attempting borderless printing and having inksplosions and often third-party ink is involved. Major vendors are concerned about the VoC content of inks which has an impact on office air quality, cartridge refillers certainly are not. (Isn’t PIRG compared about air quality, health hazards, etc?)
I’m not against third-party ink in principle, but it needs quality standards. Modern inkjet printers produce excellent output if you use quality materials (e.g. fancy coated paper, not “plain white”) and personally I’d never use third-party ink unless I had strong evidence about quality.