Well, I haven't always bought Apple Products. My first laptop was a Toshiba and it lasted five years. Then I bought a used Thinkpad, I can't remember the model now but it only lasted about three years. My next computer was a thinkpad, I think a T203 or something like that, and it died after five years also (just stopped booting).
I also installed Linux on them too and the battery life was not great either. I could be an outlier but I've not had good experience with Thinkpads even though I liked them. My older Macbook actually lasted the longest.