Don, I would buy the cheaper of the two beam scales because almost all of them are made by one manufacturer, either Ohaus or Central, IIRC. The differences are cosmetic for similar featured scales. Buying from a reputable company at a lesser price is the way to go.
I'm not sure but I think the same is true of electronic scales. Most are made by only one or two companies (Pact?). But with those the difference can be quality and accuracy of the strain gauge so, in general, the more you pay, the better the scale.