Quoted from Deez:I put the exact price I paid on all my games into pinside when I add them to my collection. Why can't pinside have the estimated prices like before? If people are just honest some of the outliers will just float to the bottom and not affect the average price that much.
You may be aware, but the "price paid" entries in your collection are private (only you can see them). I don't know if Pinside was previously using that data in agregate to fule the price estimate list (the description implied it came from eBay sales), but for now filling price in on your Pinside collection won't help anyone else trying to figure out market prices.