I worked at PC World (a few years ago now). Enjoyed my time there, surprisingly, but then I have morals :/ Services are almost pure profit for them, so there was always a lot of pressure to sell attachments. The big box stuff is sold essentially at a loss (less than 5% margin), especially the stuff they promote, so if they don't get the attach % they can't get the 20% margin they need to stay profitable. If you employ unscrupulous people,then have managers pressure them daily to perform then this will continue to happen. You can't even blame commission culture because there isn't one, it's perform or get sacked. I always thought C/PCW would be a lot happier as a business if they finally get around to deciding whether they want to be Tesco or John Lewis, rather than dithering in the middle :/