I collect GA comics because I like to read them. I'm a collector, not a dealer. OK, end of disclaimer.
My opinion of the SA market is that the rush to market of all the pressed 9.8 copies is a tell that the market is peaking at a Ponce like parabolical rate.
According to Pedigree Comics’ President and CEO, Doug Schmell: “The (July Grand) auction was a phenomenal success" -- http://comics.gpanalysis.com/gpaforcomics_newsfeed_article.asp?id=3958
Oh really??
Comparing a few of the items auctioned, If Pedigree couldn't press an extra .2 out of the comic, he lost money (one exception noted).
HA.com -- Amazing Spider-Man 3 9.4 - 22,705 (Twin Cities) 05/11
Pedigree Comics' -- Amazing Spider-Man 3 9.4 - 20,751 (Twin Cities) 07/11
HA.com -- Amazing Spider-Man 10 9.6 - 7,767 (Twin Cities)
Pedigree Comics' -- Amazing Spider-Man 10 9.8 - 18,001 (Twin Cities) PRESSED
HA.com -- Amazing Spider-Man 14 9.4 - 14,340 (Twin Cities)
Pedigree Comics' -- Amazing Spider-Man 14 9.6 - 22,000 (Twin Cities) PRESSED
HA.com -- Amazing Spider-Man 21 9.6 - 7,767 (Twin Cities)
Pedigree Comics' -- Amazing Spider-Man 21 9.6 - 7,100 (Twin Cities)
HA.com -- Amazing Spider-Man 25 9.4 - 3,346 (Twin Cities)
Pedigree Comics' -- Amazing Spider-Man 25 9.4 - 2,910 (Twin Cities)
HA.com -- Amazing Spider-Man 27 9.4 - 2,868 (Twin Cities)
Pedigree Comics' -- Amazing Spider-Man 27 9.4 - 2,400 (Twin Cities)
HA.com -- Avengers 10 9.4 - 1,912 (Twin Cities)
Pedigree Comics' -- Avengers 10 9.4 - 1,869 (Twin Cities)
HA.com -- Daredevil 1 9.4 - 17,925 (Twin Cities)
Pedigree Comics' -- Daredevil 1 9.6 - 31,501 (Twin Cities) PRESSED
HA.com -- Tales of Suspense 40 9.4 - 15,535 (Twin Cities)
Pedigree Comics' -- Tales of Suspense 40 9.4 - 16,185 (Twin Cities) EXCEPTION
HA.com -- Avengers 13 9.8 - 5,975 (Twin Cities)
Pedigree Comics' -- Avengers 13 9.8 - 4,700 (Twin Cities)
HA.com -- Fantastic Four 17 9.4 - 5,078 (Twin Cities)
Pedigree Comics' -- Fantastic Four 17 9.6 - 9,500 (Twin Cities) PRESSED
This type of market activity brings back unpleasant memories of the Nasdaq, March 2000.