Evidence of value of property.
(3) Evidence of value of property. The best evidence of the value of any term interest to which this paragraph (c) applies is actual sales or rentals that are comparable both as to the nature and character of the property and the duration of the term interest. Little weight is accorded appraisals in the absence of such evidence. Amounts determined under section 7520 are not evidence of what a willing buyer would pay a willing seller for the interest.