Originally Posted by piperclassique
I would just add that it will depend somewhat on your country of residence what access you have to some stores. B and N won't sell in Europe, for instance. I have found Amazon UK helpful with a kindle out of warranty, and Baen will sell to anyone in any format you like. If several family members want to read the same books, then it will probably be easier if you all have the same brand of ereader.
Just on a sidenote piperclassigue. with the fact the John Lewis in the UK will be selling the nook, wont that mean that they will have to start selling the ebooks as well from B & N