You must be buying third party cartlidges which is fine. Those from Canon are $15.79 to $18.99 each. The Espon brand cartlidges are $16.29 to $20.99. All prices are from Staples and matched to model. I know there's refill kits too and some models you need a chip resetter. Still not going to use any form of inkjet printer in my lifetime. The companies involved are just too deceptive and greedy.
Epson:
http://pacificink.com/blog/2006/04/...dge-lawsuit/HP:
http://www.mrtweak.com/laptop-and-d...-cartridges/Recently (this year) HP, Canon, Lexmark and Epson are also bringing forth lawsuits against many of the maker's of third party cartlidges and refillers over patent violations (trying to make it where you can only buy the high priced inks). What a mess.
I just looked at laser printers...some models are affordable, but again the toner isn't cheap and you have to replace the drum every so often. Thermal printers would be ideal in theory, but the models I've seen are not cheap and most are for commercial businesses and bar code production. There are dot matrix printers still availible on the market ancd that might be a very viable option and the ribbons are $6 - $12 tops.