Dell bought Alienware like 4 years ago folks.
Dell Buys Alienware - Alienware - Gizmodo
Kinda really old news on that one.
Also laptops maybe meant for portability, but that doesnt mean in any sense that they cant be used for gaming as well. Some people dont want to be tied down to 1 location which a desktop does. Some laptops out there are more than powerful enough to play the games these people want to play with some to spare. So to say that there is no such thing as a gaming laptop is wrong since we have no idea at all on what games they are trying to play.
If WoW and Steam is what they play then there is no reason that a laptop cant be used. Yeah no laptop can run Crysis the way a desktop can, but that doesnt mean that a laptop shouldnt be considered.