Thanks for posting this..
I REALLY loved the Rodger Stern issues of Spiderman. I really wish they'd hire him again to do more than just one-shots. This was a classic era, that really solidified my love of the character.
Although it's funny how the last couple of years of Scans daily have warped my brain to the extent of not being to look at that first cover without laughing, and imagining something along the lines of the following scenario:-
Hobgoblin:-"Surprise! Spiderman It's buttsex time!" Spiderman:-"Hobby, You have no idea how much you're going to regret saying that!" Hobgoblin:-"Hm?..What do you mean?" Kingpin's shadow looms over him.. Hobgoblin:-(Gasp!) Oh God..no!! Spiderman:-"Heh!..Gotta love that karma!"