Your title says "retail scales" and I thought I'd mention the KD scales aren't certified for use in trade, meaning situations where you're selling something based on its exact weight, like at a butcher shop or jewelry store.
But if you're wanting a nice scale for soap making, I agree with the others -- you can't go wrong with the KD8000 or KD7000. I have two larger-capacity scales by the same company, My Weigh, for weighing packages for shipping. I occasionally use these in my soap making when my KD7000 doesn't have quite enough capacity.
They have all given me years of good service.