We all live in the same world. A dollar is a dollar on the HUD statement and net to seller. In sale prices, the way financing or concessions influence the price is not always $ 4$, regardless of Fannie guildienes. I see it all the time, I sold RE and have been appraising for almost 30 years. Mar'ks condescending tone is what it is, the market does what it does and regardless of our personal opinion, the certs are what they are. The certs instruct not to adjust $ for $ mechanically. When the market price reaction is equivalent to dollar for dollar of the concession amount,then we adjust accordingly. And when the prices are not showing any adjustment for a concession, we are not supposed to make a rote mechanical one.