I have a laptop and a desktop. But I only use the laptop when I have to bring it to school for study purposes and when I go to our province during vacations. I prefer using desktops since I'm mostly at home and it's faster than my laptop. Another thing is that upgrading the hardware components is easier. From my experience, laptops tend to become obsolete after using it for 3 or 4 years. My aunt's Samsung N150 Netbook didn't last for a year. Two of my cousins have that netbook too, but theirs are still working. So maybe that's because of my aunt's and his son's usage.
But if we're talking about Mac laptops, I think they're different as their components are more powerful than other laptops.
Non-mac Laptops are just as powerful... Apple just cost more because of the design overheads... for instance, if you use the cost of a macbook pro/air and buy a non-mac laptop, like from asus... you will definitely be able to get a better spec laptop