dont get alianware, they Ripoff, they will sell you a PC for $2000, when you can make the same PC with the same specs for around $800
YOur better off building your own.
The Alineware 13 R2 is the 2015 model it starts at around 900 (not 2000). The weakness is battery life but that will be a weakness of every gaming machine. The R2 have to 6th generation processor and the 900 series Nvidia DGPU.