For the past few years I’ve been eyeing the out-of-print DVD of Whit Stillman’s “The Last Days of Disco” on Amazon.com, where it was offered by a few sellers for between $100-$300 due to its scarcity. The situation was untenable. Now Criterion plans to reissue it through their catalogue, as they did with Stillman’s “Metropolitan,” and hopefully “Barcelona” next. Aug. 25 is the date. Good news. Even for Fourierists and people in advertising.