I'll add that I have 3 T-series laptops. All are over 6 years old and still in great shape. The worst I've ever dealt with was a lose monitor cable after a drop. Build quality is only one of the reasons that I continue to recommend them over any other laptop.
I have an ASUS that i have had for 5 years. At some point the keyboard stopped working, so I popped it open and played with the ribbon and it works fine now. I don't mind fixing things, stuff breaks, but the thing needs to be serviceable.
And even if the keyboard breaks at some point on a Thinkpad it's easy to replace it. A new replacement keyboard for the T480s currently costs $50 on eBay and it doesn't take longer than a few minutes to install it.
I had a tech come over and install and he was done in like 3 minutes. I asked him how he did it and he lead me through it... so I guess now I can do it myself?
I am still using several T61 and T420 for web browsing and light work. Compared to those thin and flimsy modern ultrabooks those the old T series are almost indestructible.
And if something breaks you can easily replace everything with a screwdriver and cheap replacement parts.
And service manuals. Don't forget that at least for the business lines Lenovo seems to have great availability of service manuals (pcsupport.lenovo.com)
