Amazon Slashes the Cost of Prime to Celebrate Its Emmy WinsAdam Clark Estes9/22/15 11:17am1526EditInvite manuallyPromoteDismissUndismissHideGo to permalinkGet ready. From 12:00am ET to 11:59pm PT on Friday, September 25, all new Amazon Prime memberships will cost $67. Normally, they cost $99, a price that’s still one of the best deals in tech. The sale is one day only, and the occasion is Amazon’s five Emmy wins. Everybody wins!