sbiddle: I'm not quite sure why JB would want to buy DSE. DSE have many underperforming stores in poor locations, many would argue they would be far better off continuining their own expansion plans with their own brand rather than buying a brand that has been struggling for a number of years.
Exactly. And it's more than that; they don't really compete in most departments. They both sell phones, laptops and computer accessories. But apart from that there's not much competition. JB's lowest price stuff is at the high end of DSE's quality range for just about everything else - e.g. TVs.