Over at America's Test Kitchen, they've been evaluating heavy-duty kitchen scales. In Heavyweight Champion: The OXO Good Grips 22-lb Food Scale, they acknowledge that the bigger sibling of their favorite smaller scale takes the prize. As Lisa McManus writes, "It's durable, easy to read, and stores away very neatly since it's flat. With this scale in the ring, other models don't stand a chance."
And for those of you who need this size scale (for preserving, weighing large roasts, etc.) you don't need a second scale - this one will go down to 1/8 of an ounce.