A disorder characterized by knowing what you want to rent from Blockbuster only when you are in no way planning to, or in no way able to, make a trip to Blockbuster.
Inversely, walking into Blockbuster only to realize that you have no idea what the hell to rent.
The general symptoms of Blockbuster Syndrome may also be seen pertaining to music, clothing stores, and virtually any other consumer outlet.
We walked the four blocks to the video store, only to realize all of us were suffering from a textbook case of Blockbuster Syndrome. It took us about 45 minutes to finally think of a movie to rent.