Sadly when people think ereader, kindle and amazon come to mind. When they think tablet they think apple, nexus, Kindle etc. But not Nook or Barnes and Noble. People wonder why BN is selling other things besides books. Well if PB arent selling as well anymore what else are they supposed to do?? They cant have these large bookstores and just sell Nooks and PB that dont sell.
Sadly I dont think there is a fix to this. BN will most likely disappear and most PB buying will be online or at Big Box store. They just got into the ereader game a bit late I think.