Continuous Ink System for Epson Stylus CX7800

[tebo]

I was hoping to get some advice on which Continuous Ink System to buy for my Epson Stylus CX7800. The one I have seen advertised the most is the InkJetFly but it seems like I would still be buying cartridges, though much more cheaply. I need very good quality but not professional photography quality. My printer does get a pretty high volume of use.