I have to agree that some scales are accurate for smaller weights and less accurate for larger weights. My old scale was accurate for weighing my 3 year old but not for me. It was always 10 lbs out.
I have a Body Fit digital scale I bought at Wal Mart. It seems to be very accurate as it has agreed with every other scale I have used ie gym, doctor's etc. I can't remember how much it was, probably $35 or so.

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