From my analysis, The patterns that I see from the tip are:
Supply and Demand: Find a time when the demand is low, and the supply is high. Product Update: Find a time when a latest product is released. Get the previous version Obsolete/Expire: When a product has to be thrown away or became useless unless they can find a buyer in time.
Follow these patterns and you can get the best time to buy everything. What other patterns have you identified? The Best Time to Buy Everything – [SmartMoney.com]
