This idea isn’t even daydream-worthy. Appraisers routinely ignore individual sales that don’t fit the trend. They’re looking got the rule, not the exception.

Don’t make me laugh. Appraisers do what they’re told. If a bank wants a higher appraisal, the appraiser finds a way to get it. If the bank wants some value chopped off the appraisal, the appraiser chops some value.

In this day and age, banks want to get the appraisal values down. I don’t think they are going to ignore low comps.