True, but at least from my own experience they're also really prone to breaking and don't last nearly as long as any desktop I've ever owned.
Maybe it's just bad luck, but I've had $1,000 laptops break in as little as 9 months.
Knock on wood, I have an HP Spectre that'll be 3 summers old pretty soon. I use it mostly for photoshop and VN's since it has a touchscreen and pen... It still makes me so very nervous though. And laptops are always so expensive compared to desktop hardware of the same level.