http://finance.yahoo.com/q/ks?s=BKS+Key+Statistics
Market Cap (intraday)5: 757.36M
Enterprise Value (Apr 25, 2012)3: 1.00B
The attraction is in the Nook ebook business.
The future of publishing is this
author - digital book store - readers
cutting out the middleman of publishers. Apple could compete head to head with Amazon. The Nook is the best bet (30% vs. Amazon's 60%).
Barnes and Noble will be bought because of the valuable Nook. The most likely buyers are tech companies with a lot of cash to compete with Amazon.
Apple
Google
Microsoft
Facebook
maybe even Samsung or Sony
The physical stores will go the way of big chain music stores like Virgin, Towers etc...
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As ebook grow (around 30% of the book market right now), this will be more common
Traditional: 17.5% royalties
New Publishing companies that offer editors/covers/marketing: 35% royalties (**Amazon Publishing for example)
Self-publishing: 70% royalties
Amazon Publishing currently has 236 authors who signed for at least 1 book (see the link). This list grows each passing day
http://amazonpublishingauthors.blogspot.com/
If Apple buys Nook, I could see Apple doing the same thing.
Authors benefit: 35% royalties instead of 17.5%
Readers benefit: cheaper ebooks and faster to market