I don’t know if the camera would be built using less quality parts, but I do know that some of the “onlne sellers” are importing cameras from other countries and selling them here in the U.S. Like from Japan for instance. Your manual would be in Japanese and if anything happened to the camera you would have to ship it back to Japan to get it repaired. These are reffered to as grey market products. They also advertise these low prices for the camera, but when you call or order on line, they then tell you the price doesn’t include any of the basic accessories that come standard with the camera from an authorized dealer, so they charge extra for those. So in the end you may not save much at all. For peace of mind you are better off buying from an authorized dealer in your country of residence.