I think you missed what the article was getting at-
Apple would buy BKS partly for the digital catalog and the retail locations, but mostly BECAUSE they don't need the nook. The nook's low margin razor-and-blade business model is the biggest threat for the future of the Ipad- and the rest of the computing market as well.
Think about it- Amazon doesn't want to compete with Apple- Jeff Bezos signaled that clearly last summer when he stuck with E-ink on the Kindle 3. Both companies have too much money to go head to head- things would just get ugly for both. The only reason Amazon is coming out with a tablet is because the nook color forces them to do so. If you take away the nook, then Amazon will price their rumored tablet much higher than they otherwise would have- helping preserve Apple's market share and margins.
Just getting rid of the nook is probably worth a billion or two for Apple. If you look at the financials for BKS- the money being spent on the nook and the website is the only thing making BKS unprofitable, BKS core bookselling and college business are still paying for themselves. And they will probably remain profitable long enough for Apple to convert the locations they want into Apple stores and wait out the leases on the rest (five-ten years). So this strategy would eliminate a competitive pressure for Apple and pay for itself.
But I also don't see it happening. Steve Jobs doesn't like to do business that way. It would damage the Apple brand if they are seen as resisting innovation. That cancels out the bean-counting benefits.
Retail businesses are not faring well. For an acquirer, AAPL included, here are the costs associated with the transaction. Buy for x$ per share, liquidation costs for retail outlets, covering the debt.
Assumption is liquidation of retail if goal is just the Nook. Retail book business is faltering. Ereader cannablizes retail biz.
I say to investigate puts while they are still inexpensive.