It took me all of 10 minutes after opening the box to root the Nook tablet and load the Kindle app on it. Now I have one "e-reader" that I can use to read everything, library books (.epub which the kindles don't support), ebooks from BN or ebooks from Amazon. This setup allows you get all the same books (but probably not movies) that your prime account would give you access to.

One of the things I disliked about the Nook tablet was that you only get access to the BN app store out of the box. Many of the free applications you can find on the google market for free are $3+ on the the BN store. Of course rooting fixes that too.