If Barnes & Noble or a similar type of a book store started offering a monthly membership(say $7-$10/M) to freely rent books similar to a Blockbuster pass, would you be interested in such a place? Obviously people are going to say why not use the library, but let's be real most adults don't use the library for a maried of reasons. Old books, children/old people/poor people inhabit it, no cafe/food offerings, depressing atmosphere, lack of new popular books, etc. 

You obviously have a bad library. Heck I even get new movies from there.

Kindle owners lending library allows book renting somewhat.

Way to be constructive. What does that have to do with anything? We're talking about Books. And that doesn't deny the fact that people don't use the library and instead use redbox/blockbuster/netflix/etc. anyways. But good for you, and your awesome library.  

You obviously need to go to the library and start getting books instead of movies. 

You sad people don't use libraries. Well in my area they aren't like you described them so I have no need for a monthly service. I hardly use redbox/blockbuster because libraries at least in my area get new movies the day they come to DVD. I'm just expressing my opinion that a subscription based book store is not something I'm interested in.