I sent back Darkness after finishing it last week. Since the mail has to travel the width of a continent back to their shipping center, I tried to send it back exactly 3 days prior to the release of BioShock. It worked! It arrived yesterday and they shipped out Bioshock within an hour.... to now travel 3.5 days back to my house. The thought of missing almost 25% of my month to have 2 games out at once is keeping me from running out to GameStop right now and taking the rest of the day off.