Thank you again for taking the time to respond. You raise some good questions about the Rug Estimator. I see the rug estimator as one tool to assist in gathering information about a rug. The exercise of going through the different categories in examining one’s rug has been very useful to me, especially since I’m not an “expert”. However many questions in turn are raised: how current is the database; parameters of database (Tabriz and Nain are included yet Isfahan isn’t). Also, as you suggest, there are subjective / regional variables that may affect the value. Determining a price is often tricky. My approach will be one of factoring different sources, including initial purchase price, appraised value, potential buyers, Rug Pro Estimator?, and other considerations.