Noticed it's useful to pay attention to one's printer settings to take advantage of usage of ink according to need. (Low ink usage really looks as good as medium usage settings; try draft vs. normal for low-priority items etc.)
I don't like the cost and I feel if you are a regular customer who buys HP cartridges that we should get a big discount for repeat purchases. At least 10% or more. I was OUT of ink so I was forced to buy THEM ALL because you can't print when one runs out....bad design HP!!