This sort of thing is happening at loads of unis which is a bit pants. When I started my undergrad degree in Swansea we had a SU shop selling stationary, doing photocopying, binding etc, a little 'corner shop' selling sandwiches, newspapers etc, a second hand book shop and a 'Spar' type shop selling all the normal things you'd expect to find in a Spar plus uni branded clothing. By the time i left only the 'Spar' type shop and the corner shop where still there. The 'Spar' did start selling stationary to compensate but it still wasn't what it used to be and the corner shop was little more than just another food outlet. The second hand book shop closed within just a few weeks of my first term and i tihnk that was only so they could sell off their stock, apparently they blamed, ebay/amazon and rising rent costs on the closure. I think shops like Tesco and other big supermarkets that are easy to get to are probably drawing away a lot of the business because the SU ran shops can't compete with their prices.