To date I have owned three digital scales and 3 beams scales. It is my opinion that beam scales can and do have just as many issues with drift and false readings as most any decent digital. The upside to beam scales is they don't have batteries and they aren't effected by induction.

The beauty of digital is that you don't have to know the nominal weight of the item you are weighing. With a beam you have to be close or you will spend some time weighing multiple items.

If you are just looking for a scale without dispenser assembly then my first choice would be a Dillon DTerminator.