http://www.publishersweekly.com/article/CA6607145.html
With the granular level of control that Drupal offers, early testers have been overwhelmed by the number of options they have to personalize their Web sites, from how they want their events calendars to look to whether they want to have a gift registry. “We’re very enthusiastic about having an open-source Web site,” said Kerry Slattery, general manager of Skylight Books in Los Angeles, one of the first booksellers to sign with BookSense.com. “But we can see that there’s a learning curve on this.”
"To give booksellers like Slattery more time to experiment with their store’s beta site, ABA cancelled the e-commerce workshops to have taken place at the regional trade shows this fall. The organization is pushing back its timetable to switch bookseller Web sites to Drupal while it works on taming “the beast” (the bookseller’s economic and sales tool), the Tarrytown nickname for the ABA E-Commerce Solution."