The pricing guides are generally bad because they take a 5 year average. Prices are what they're worth now. It doesn't matter that Johnny Mnemonic was $900 in 2009 or not. That's no where near where its at now. So to average in $900 sales beings the price down a lot. The same will be said when / if prices take a down turn. The boston pinball ytd column is the only reliable one in my opinion.