One reason: to keep games off of your productivity machine. I have a modern laptop and desktop, so I simply do work on the laptop and play on the desktop. Not

One reason: to keep games off of your productivity machine. I have a modern laptop and desktop, so I simply do work on the laptop and play on the desktop. Not everyone has that option. It's also possible to have an old unused laptop without having a newer machine. Not very likely in this case since the author seems to be very much interested in computers, but there are certainly people out there who have replaced their computers with mobile devices and may not even touch a traditional computer (outside of work).