Prime Sale is one of the Prime Offers found above your farm. Prime Sale offers a chance for you to purchase one of the Library handbooks at a 10% or 20% discount, a decoration only available for gold at a discount up to 20% including some Theme Event Decorations, or one of the Naughty or Nice gifts or pranks at up to a 50% discount. The Prime Sale runs for 1 hour. Several different Prime Sale events may run each day. During the Naughty or Nice event, only Naughty or Nice items will be offered by the Prime Sale.