That Zillow analogy makes no sense. Then every single trade is even by definition. Exactly! It's a cop out in my opinion. I really believe you guys are misunderstanding the concept here. Every single trade is not even by definition. In the Zillow example, Zillow doesn't just cut your estimate from 500K to 300K based on that single sale. It's one piece of evidence that is applied across the board to that and similar homes on the market. So there's a slight adjustment. Maybe the market for that home is really changing, or as Peavy pointed out maybe that particular owner made a bad sale. But it's still a change in the market that needs to be accounted for. Likewise, the trade values from baseballtradevalues.com weren't adjusted to make things even on both sides. If you even look at it now, it still shows us getting about double the value that the Padres got even after the adjustment. But an adjustment was necessary because the market dictated an adjustment. It showed them that under their previous valuations, Grisham was likely undervalued and Urias was overvalued so they had to adjust to the market. If Urias turns into an All-Star and Grisham turns into a 4th outfielder, those valuations will once again be adjusted to reflect that new information. Any market-based valuations operate under those same concepts. Look at Kelley Blue Book for another example. If they publish that a 2017 model of a certain car with 50,000 miles on it is worth $15,000, and then that next year ten thousand similar transactions take place with an average price of $12,000, are they going to stomp their foot and stand by their $15,000 valuation? No, they are going to adjust their valuation to account for what the market tells them they were worth.