Yeah, massive difference with the eco tank ink. I consider it free ink it's so cheap, at least when printing colored text files.
For disks, I use DVD labels and an old CD label contraption to stick the labels on the disks. I use to use SURETHING label maker but somewhere along the line it didn't make it through the WiN "upgrades" and now I use an old NERO label maker that is a bit of a challenge to use. At one time I had a printer that did disks but I think I only used it once, and went back to the stick on CD labels.

I think that is the point that I made above. In the Epson printers, I think the ink-jet nozzles are built into the printer head and ink is fed to the nozzles from the ink tanks. Then if the nozzles clog the printer is either junk or it is expensive to clean or replace them.

In most of the cartridge models, the replaceable ink tank (cartridge) also contains the ink jet nozzles and the associated electronics and mechanism to push the ink out. Get a new cartridge/ink tank and you get brand new nozzles.

In both cases the ink is the minor cost. The real expense in the cartirdge models are the new nozzles and mechanisms surrounding the nozzles.

I have also read some articles some time ago that made the claim that in printers where the nozzles were not replaced on a regular basis that quality may suffer as the nozzles experienced wear and dried ink residue built up around and inside the nozzles. These nozzles are nearly microscopic so it would not take much residue to cause some type of issue.

I have not owned an Epson printer for several years. I purchased one several years ago when it was the only one available to me at the time and was very disappointed. The quality was good but if you did not print on a regular basis the ink nozzles would plug up. Even going a week without printing, the nozzles would be plugged at first and require several test pages to clear.

Finally, after a period of several weeks that I did not print, the nozzles would not clear and I had to get rid of the printer. The cost of replacing the nozzles was more than the cost of a new printer. That was the last Epson I had.

In the cartridge models, the nozzles are replaced each time an ink cartridge is replaced. And for some reason, even after skipping several weeks on not printing the nozzles on these printers have never been plugged.

Are the newer Epsons better in this respect? The new Eco models are attractive from the standpoint of the ink costs but if nozzle plugging is still an issue then I am not interested.