Eh, you only need two buttons on a scale: on/off and tare. I scale out maybe 20-30 different recipies every day comprised of multiple ingredients, and believe me, toggling back and forth from metric to idiot (imperial) is a waste of time and frustrating. Many a time I have dreamed of doing nasty things with a meat fork to t he inventor of scales that automatically display in idiot, forcing younto toggle it back to metric every time you turn it on. If you need the Imperial function, put it in an inaccesible spot like the back, you only need it 0nce-- to convert idiot to metric when you get a new recipie.
I have a a regular scale that goes up to 10 kgs in 2gram increments, and my "drug dealers scale" that is only good for 100 grams, but accurarate within 1/100 gram. Perfect for spices and funny things like pectin, cream of tartar etc.
I did mention that the imperial system is the most stupid, dyslexic, and messed up system for kitchens, right?