@cryptodave most key´s comic books due to netflix or movie speculation go up in value , but the speculation price decreases when the show/ movie is close , see guardians of the galaxy , alias 1 , even star wars , only strong A class characters with a big fan base and a well know key book retains the value , Daredevil 1, ASM 129 , Avengers 1 etc.
When i want to invest on a book i always use benchmarks, hulk 181 and asm 129 are good bronze age benchmarks. If you compare GPA grade to grade WW32 vs Hulk 181 and ASM 129 you will see why i believe its overpriced , I am not saying its a bad character or a bad book , i am just saying i believe its a time to sell rather than buy