I'm trying to price machines for the York show and be fair but, just like everybody else want to make the most profit possible. Very difficult to find a happy medium so, I am really not sure which price guide to go by or which source to reference especially for some of the older machines that have taken a huge jump in price. The lines for me are getting blurred because of you have eBay which may or may not be true prices not really sure whether they've been picked up and what actual condition was. Then Pinside is at times accurate other times I look at them and question some of the actual prices being posted. And then I get my new Mr. Pinball 2017 and some of the prices in it are higher than what are on pinside and now I'm really not sure where I'm at LOL