I remember being so excited when Borders opened and I do feel bad that they've gone under. Since Borders is closing stores, they've been selling off their remaining stock. Have you been to any of the closing sales?
In February, the Wall Street Journal circulated this list of all the stores that are closing. In NYC, the Kips Bay Plaza, Park Avenue, and 100 Broadway branches are closing. In Boston, the Boylston Street branch is closing as well.
I haven't checked out the Manhattan stores to see what their remaining stock is like - but I plan to this week.