I never buy from private parties on ebay and I only buy from companies that have 95% or higher feedback based on 2500 or more transaction in the last six months (power seller). Buyer beware, but even a seemingly good company can sell you something they don't have and then expect you to wait while they have your money. At Walmart you can always take it back to a human, not so on ebay. With the exception of Tire Rack, if I spend more than $500 on something I want to see it in person. Sorry for the digression...but I did not care for the "smart enough" comment. Over 25 ebay purchases is on the margins of statistical significance relative to the error ratio one might expect from their ebay shopping experience.