How I would describe a MacBook is "quality". It's not especially durable, it just doesn't break down over time. Other laptops break in stupid ways. The hinges snap because it's metal screwed into plastic. The cheap plastic casings wear down, discolor, and crack as you touch it. The trackpad wears down because it's plastic. The logic boards stress with the constant heat flux and end up breaking. Macs don't often suffer from that.
MacBooks aren't indestructible in any way. They're just built to a higher standard so they can withstand daily use. It's kind of sad that our bar is set so low, but many other laptops can't withstand daily use for years on end. Even Thinkpads, I've had the hinge areas crack because it's metal hinges screwed into a plastic chassis.