I like that the color cartridges are individual so you only replace what you need. This way there is no waste since ink cartridges are not cheap. I think this is the first time in about a year that I have had to replace my ink. This may not be the case for everyone.
I never use cheap refill ink cartridges because I want the ink that is intended to be used in my 13 yo HP psc 950. This printer does it all and has given many yrs of great service with never a hiccup. How does it get any better than that? I think a huge part of the reason this printer is still going strong is the fact I've always used HP ink purchased at Staples.