There's always "something", for most of us.

For me, it was the unibody and screen hinges - they were just way more durable than anything else out there, at almost any price. Now I share your affinity for the trackpad.

I think I'm at the end of wanting a full-function laptop at this point. Once my 2015 rMBP dies I'll likely replace it with a powerful work/gaming PC at home and a convertible tablet PC like a Surface Pro.