Most of the Epson CX range of multifunction printers are very good. Just remember that if anything goes wrong it all goes wrong. So far the Epson CX6400 is the latest and compatible ink is not available yet. All the earlier epson series CX 3400, 5400 etc. have compatible inks from click here at really good prices. Most compatible ink suppliers will need at least 6 months before they can supply ink for any new printer that comes on the market. So to answer your question the Epson range are the most economical to buy and run.