I have the same one. It died on my 2 years ago and the cost to fix it ($600 for a new motherboard) was right at the tipping point between worth and not worth it. So I did it out of laziness. (Everything is backed up fine, but reinstalling all the tools etc is just a pain.)

Absolutely no regrets. I replaced the battery myself last week.

Crazy that we're now 7 years later and nobody has been able to come close to this kind of laptop perfection.