Replacing the cells isn't particularly hard if you are willing to take the time with a dremel -- if you're clever you can then close the battery without gluing

Replacing the cells isn't particularly hard if you are willing to take the time with a dremel -- if you're clever you can then close the battery without gluing it. I still have a 4.1 macbook pro that I keep using specifically because it's the last one they made with a user-swappable battery.