If you really like gaming you should look towards desktop
Desktops will ALWAYS be better then laptops for gaming.
-For portability, if you want ease to play where-ever you want, and are always on the go.
-run hotter, and usually gaming laptops are big, heavy and use a lot of battery (so it making using them mobile harder anyway).
-Expensive, and much slower then desktops
-Not upgradable (to upgrade you need to buy a new laptop)
-Cheap, very good price/performance
-Able to build your own and completely customize it
-Higher end hardware available
-Able to be constantly upgrade it
-Not very portable
So desktops are the obvious choice for gaming. Gaming is heavily
Reliant on your computers graphics, which laptops fall far behind
in. Even $1000 laptops can only play battlefield 3 on like med-high
Settings at 1920 x1080, where as a $1000 desktop can max it at 1920 x1080.