There have been a few laptop deals recently which have gone cold, and there is a perceived lack of activity in the category because of this. Gaming laptops are rarely deals because they are essentially very expensive laptops. So this deal really is for information I guess.
At the moment, Amazon are running a promo where you can get a free XBOX ONE elite controller with this laptop. Coupled with the already decent price for the laptop I think makes this a good deal.
I do believe this laptop may have been posted from a 'catalog' company with a new customer discount, so this would suit people not eligible for that, or unwilling to open new credit facilities.
The elite controller offer runs until early April.
Also, you can spend £100 more to get an i7 7700hq instead of the i5, plus a 256gb SSD instead of the 128gb.