www.elitefourum.com/t/price-check-psa-9-gold-star-rayquaza/27685/1
Check this thread out, especially the post about the Michael Jordan rookie 
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But yeah, 42% cheaper than the last sale its a good price.
Edit: this is the problem with shill bidding even if a legit person wins. The higher the prices; the thinner market is and sometimes there’s only one person at the top. So large gaps inbetween real buyers can cause prices to drop significantly.