Are there REALLY that many people who need a portable game computer?

It seems to me that in this day and age, anyone who needs a laptop probably already has one. From this, I deduce that for every use OTHER than gaming, people can usually meet their needs with the laptop they already have.

I can understand the desire to play games. What I don't understand is why someone would look for a replacement laptop >simply< because they want to play games - unless they have the desire to play games while they're away from home.

Are there really that many people who need replacement new laptop, instead of a dedicated (better) desktop system?? Why not just continue using the non-gaming laptop for everything that's not a game, and the desktop for gaming?

I am serious here - I honestly don't understand why so many people are asking for a gaming laptop.