Computers are the downfall of the Computer store.
The trouble is, once you buy your first computer, you never need to visit a computer store again, you can just use your computer to buy a new computer.
To the computer owner, there is no need to go into a shop and "try out" a new computer. Note that "trying out" a computer in PC World means looking at the screen saver or Windows Media Center, perhaps playing Solitaire if you're lucky enough to get 5 minutes away from the salesman. Impressive stuff if it's going to be your first ever computer, but distinctly unimpressive for everyone else.
Clearly then, PC World need to do something to appeal to those of us who have actually seen computers before. Maybe a more techy area with a bunch of antistatic workstations and barebones computers, plus piles of components, where you can go to build your own computer in the store. If you're happy with the result, you can buy it.
Obviously this idea is so good that PC World will never do it.
The least they could do is get a geek in to run free workshops on how to set up home networks and file servers and rip music or movies. If you're going to run a store for noobs, at least give them a reason to keep coming back.
Image this, I want to be a dentist so I go into Dentist World and buy a whole bunch of overpriced dental equipment, then when I ask the guy how to use it he tells me, with a cheeky but reassuring grin, that I can just wave the dental drill around inside my mouth, "or some shit like that", and everything will be fine, as long as I buy the extended warranty. "These dental drills break ALL THE TIME, not to queer the deal or anything, *wink wink*, and the warranty comes with free Carbon Brush replacement for the first 2 months".