We all know there is plenty of used crap in the world, it isn't about how much you sell the product for, its how many things you can get in and out the door, that is how all these huge companies got big, get it in push it out don't worry about what it is going for. The time and energy you spend on making a perfect listing you will have lost potential sales, and fast profit. You should follow shipping information, and make sure you can get things out as cheap as possible. Slim profit margins are better then slowly accumulating large profits. When I seen a special on tv, about ebay millionairs you have to understand they are working like assembly line workers, factory style. These people have a person designated for photography, and writing short details on a listing, and somebody who packs, and a person to run the packages out. This is not real guide, just to let you know how people get wealthy.