Check if an auction website you plan on putting in a bid offers coverage for purchasers. This will likely be beneficial and save you from frustration should you encounter a fraudulent seller. A few sellers approve CODs as payment for purchases ordered, however the number is small. It is not advised to prepay your order using a check or money order because of the risk of being scammed. Contest amongst vendors leads to their need of continually securing sales no matter what. Thus, they offer promotional deals in order to lure people to invest in their merchandise. Small regional computer exhibitions are areas for making cut price promotions.  Always make sure that you know what you are buying and that you can spot the variance regarding the real thing from a phony.  In addition, be ready to pay in cash. Online stores should indicate the costs of the goods clearly, including the value of tax and shipping & handling.