Bob’s also has a page that consolidates all of their pre-owned “buy” prices:
https://www.bobswatches.com/used-rolex-prices ... Use that as a baseline for the price you could easily sell it for, and factor in the tax savings of trading in with the AD to determine whether you’re in the same ballpark. You may be able to get more than Bob’s with a little legwork, but it’s a good haggle-free starting point.