Now that is cheap sassan, the cheapest I can get them is what you pay for a 36 pack. It is a new printer over here so prices may come down soon as it gets established. I don't mind doing it the messy way with a syringe if need be in fact when I have got that low on inks I have scraped the contents out of the supposable empty ones which I never throw away.
I will give it a miss on the second printer idea, I have one already unfortunately that one has dried out completely with not being used if I did a lot of text then yes its a brilliant idea to have a second one.