The BBC Shop website is still in operation, I wonder if both will eventually merge?
BBC Shop is cheaper than the BBC Store on some titles.
And the Blu-ray and DVDs will almost certainly be higher quality than the digital download versions. (Looks as if BBC Store is sub-iPlayer quality for HD at 3Mbs rather than the iPlayer 5.166Mbs on web browsers and ~8Mbs on Sky+HD boxes. I'm guessing 720/25p...)