I just did the same thing. Traded my old Nook with the dying battery for the small Samsung tablet with the Nook application. It's a Samsung Galaxy Tab4 7.0
You can also trade in an old Nook on a larger Samsung Tablet.
List on the small one is $150, minus trade in of $50.
The advantage is that you also have a small tablet in addition to it being a reader.
Note - I believe this is a 'normal' Samsung tablet with the Nook app added to it. The attraction is that any old Nook is worth $50 in trade.
The promotion is on the B&N website. Or just go into any B&N store.
Tim