Have you developed them? if not they wont be worth much. Reg fee or maybe a little more if you find a suitable buyer
so why was usedtents.org appraised for way more than usedmics.com(both undeveloped) It makes no sense
UsedTents makes more sense then UsedMics You need to develop them if you want them to be worth anything. But i'm still sticking at my appraisal: reg fee (u/d) for both domains