Mijael, first, I thank you for stirring the pot on the SA forum. It's been a bit dull here lately.
Second, I generally agree with you, but sometimes one can't be so sure that the first appearances of lesser known bad guys won't explode and hold value. Villains like Dr. Doom and Green Goblin stand the test of time and, as such, FF5 and ASM 14 are very collectible books that generally hold value and steadily grow. I don't think JIM 85, however, would have become such a collectible and valuable book if Tom Hiddleston hadn't absolutely hit it out of the park with his rendition of Loki and turned Loki into a globally-adored superstar bad guy.
The movie helped him of course but its general culture that Loki is Thor´s enemy, i didn´t read comics on my childhood but i remember him from the cartoons.
I agree that movies can help for example the way they presented Winter Soldier wich was unknow to me was impressive and makes me want to buy his 1st app
Let´s see what happens with Zemo , he will be played by a great actor , people are paying now $60 - $65 for the Avengers 6 VG´s