Eh, I ended up selling it after the 6990M took a dump. Still got $50 out of it! But you're right. I *dropped* mine a couple times and it just kept kicking.
My M17XR3 got me from High School graduation in 2011, till 2 years after graduation in 2017. Despite the $1600 initial cost, the laptop really did last the test of time, even if the battery didn't. That was right after Dell bought them too I'm pretty sure. People were worried about build quality, but it still stayed on par back then.