I'm not saying Eddie's motivation in the comics wasn't weak,but I don't think that alot of "evil" people can have clear,rational or justified motivations. Eddie was clearly a messed up individual. It's like the say,you can't explain insanity. And I think that once the alien symbiote got a hold of him,it really screwed him up.
Eddie is still my favorite character, even after a steady, 35-year diet of comics. I can still picture the place in which I read Spider-man 300, because that was the moment when comics "grew up" in my mind.
Prior to that, I thought of all comic book villains as irredeemable monsters, even the human ones. There were villains who wanted power, villains who wanted riches, or villains who wanted to destroy or kill. Yet it all amounted to one thing: BAD guys. However, when Eddie started to recount his past, I felt myself sympathizing with a villain for the first time. He grew up without his mother, and with a father who resented him. He tried to win his father's affection through sports and academics, but that failed.
He fought an uphill battle to adulthood, which came to a crossroads when he lost his credibility as a reporter and his marriage ended. Eddie wasn't blameless in these events, but life was certainly unkind to him. His logic might have been skewed, but it was understandable. It made sense to me that Eddie sought out his own personal bogeyman to eradicate. Eddie had tried to play by society's rules, but that got him nowhere. For the first time, I understood a villain's motivation as something that a normal person might feel. Eddie wasn't a bad character; he was a tragic one like Darth Vader. Venom vs. Spider-man wasn't good vs evil as much as it was a rivalry between one guy who overcame life's obstacles and another one who fell a few inches short. To this day, that's still my singular favorite comic book issue in any comic.
I still hope we see something like that in the new Spidey franchise. I'll never get over the hideous, clichéd, boring, mind-numbing, lazy, poorly-acted, visually-nauseating version of "Venom" we got in Spider-man 3. Yes, I'm still that angry after all these years. It's ironic that so many Venom fans now wish for the very thing Eddie wanted in the comics: redemption.