I call wildly_fanciful_statement. Spider-Man is an iconic, high-profile character whose appeal has been mainstream for at least 30 years. I find it hard to believe that even someone who knows nothing at all about comics or comic book subculture would look at a cover that says 'Introducing Spider-Man' and not question whether if it had any value outside of yard sale filler.
All depends where you are. The mess people throw away in the garbage where I live is insane. Then again, my town is split into two. One half is pelham(average 500k-700k homes and that's where I live) and the other half is the manor(2 mill and up homes). The mess the people in the manor throw away on bulk garbage nights is insane. I always go through the manor on my way to work when its bulk garbage that morning. You would be amazed at what people don't care about.
Maybe we should start a 'What have you found at the dump lately?' thread.
Seriously,I found a 1906 GE brass fan that still worked at the dump a couple of years ago.Sold it on ebay for $125.
One man's trash & all that.....