Chris Morran, writing for Consumerist:

Amazon announced today that Prime subscribers will now be able to save 20% off sticker price, not just on pre-orders, but also on new titles during their first two weeks of release.

That second part is important, given the number of high-profile games that have been rushed to market with broken content, this two-week window means that Amazon customers can wait to see if the game has crippling problems (or horrendous reviews) before they buy.

A great perk for existing Amazon Prime members.