Prices seem to be creeping up on some stuff at the moment.. there's 2 explanations for this really..
1) its around 30 days before the sales. So legally if the shop pumps up the price for 30 days, they can return it to the original price and CLAIM a huge discount..
2) people have been saying for a while, the falling pound means more expensive imports. So you'll likely see this more..
I'm sure there's NUMEROUS other things related to shops struggling and needing more money, but those seem to be the 2 things people mention most.