When it comes to buying and selling goods, either from manufacturer; trader; wholesaler; small businesses; from big to large ones --- a weighing scales, is the basic thing for it. As of today's status in the fast-progressing countries and places in its market, this stuff is necessary. And to think wholesaler uses big weighing scales and retail stores uses small ones, that is their bread and butter. And that is just the nature nowadays unlike years ago that businesses just uses their hands and mind to weigh stuffs. My late grandfather even said, they were just exchanging stuffs with no particular weighing scales. In short, there is no accurate information and a good technology. We are lucky now because we have this stuff and other high-technology stuffs, we just have to use it in a good way and take good care of it. Weighing scale is a basic thing a store have. Even some clothes now are sold per pound. And I guess you know others stuffs which scales are a must. Well, good luck on your shopping and retailing goods... as always have fun but also be sharp in looking at scales.. :-)