That's amazing, I never knew that. I loved my old Thinkpad T42, got a good 4 years out of it before the hinge on the screen broke.
I thought that was impressive too, given how poorly I treat my equipment. It fell out of my bag numerous times but never had any problems except for the screen hinge finally wearing down at a corner from overuse.
Then I got a 2010 MacBook Air. I'm still using it today. It's got numerous dents on top, bottom and all corners, and a small crack at the bottom of the screen (which strangely hasn't resulted in any dead pixels), but otherwise it's still in full working order. I remain hugely surprised at how well it's lasted.
Despite the general consensus of Macbooks being very well built, and Thinkpads being built like tanks, this anecdote is definitely the opposite way around.
Now if I could get a nipple on a Macbook, or a decent trackpad on a nippled-Thinkpad, I'd have found my perfect laptop!