One reason why there might be the perception that PCH is cooling is the flooding of low grade, overpriced copies on eBay. When you see the same book sit stagnant for week after week it can lead you to believe that there has been a downward market shift. In reality, it is someone fishing with dynamite, trying to find that impulse buyer that just “has to have it now”, and doesn’t mind sitting on the book until they do. Conversely, there are books that I personally have been looking for for decades in grade with few copies ever surfacing (CoC 24, ToT 16 and TMIH 16 spring to mind). Most books are easily attainable in vg or lower (if you are willing to pay the $$$). Finding them in 7.0 or better is...challenging.