caver101: "Single control dial" is unfair as a criticism. The dial is a button-press, too, which switches between two functions (e.g., in A mode, between Aperture and Exposure-compensation).
This is much easier that moving hands/fingers between two separate dials -- and is surely a Pro, not a Con?!
Pentax has a control dial for the fore finger and one for the thumb. No moving from dial to dial and no button to press
Most of the current apparently successful camera retailers in the UK appear to be smallish local brick and mortar shops who have developed a strong online retail operation and through that have developed the volumes that allow them to undercut companies like Jessops who have a nationwide brick and mortar presence. I think if Jessop had pushed the online more then they may have been OK; statements like the girl who said 'I have a fantastic camera on my iPhone' does not help though - fanstastic for what, Facebook - that is probably all she needs it for