The scale that I have had for the last few years is pretty accurate; I have calibrated it relative to 2 gym scales and they report the same weight to within a half pound.
However, my home scale only reads to the half pound- so I can be 219.0 or 218.5, but my scale will never tell me that I'm 218.6 or 218.8.
Personally, I think I prefer it this way. Due to the usual fluctuations in weight throughout the day / over the course of a couple days, I think my lower-precision scale helps keep me focused on the overall trend and I don't personally see (as much of) the smaller daily changes that might otherwise make me feel down.
Anyone else feel the same?