It really depends on where you are located for the things to be worth it. I had to buy a new keyboard for my t470 a few months ago after dropping a full latte on the computer top - only the keyboard got fucked, drain holes worked awesome and only need a little of internal drying and cleanup - and just that cost me 100 €.
It really is the best laptop I ever had and I had on my hands a much more recent X1 and currently a Dell XPS, both which I hated.
What I can say and be happy is that after all these years I can still at least find parts and buy them, any other computer I simply wouldn’t be able to find any parts or after market for it.
But in my country basically impossible to find market for it or parts and only recently did people were able to order some few models from their online store, the thinkpads simply weren’t sold besides business deals around here.