I admit I tried to save money by having my print cartridges refilled. First I bought a kit to refill them myself, but I had only minimal luck with that and it was messy. Then I tried to have them refilled at Walgreen's and found that after using the refilled cartridge for only about a week, I kept getting an error message that the cartridge was not compatible with my printer. I still don't understand how it could have worked for a while and then all of a sudden I was getting this error. I returned the cartridge and had them refill another one and had the same thing happen again. So I have given up on refilled cartridges and went back to the original HP cartridges.
Although the cartridges are more expensive, Hewlett-Packer does claim that their cartridges print up to 65% more pages than bargain inks. So if that's true, then I guess I'm better of in the long run. I admit I have never had a cartridge fail to work and they do last a reasonable amount of time. The quality of print is very good and will not fade.
I do believe that the cost of ink is ridiculous when you consider how little ink is really inside that small cartridge. And everyone thinks the price of gas is high!!