I understand why Godzilla always trampled Tokyo. It wasn't merely a dramatic visual (despite the archaic special effects); he was frustrated (I presume, by virtue of being a giant mutant lizard), and could only achieve catharsis through wanton destruction.
If I were a giant mutant lizard, I'd take it out on every metropolis I could find. Hell, sometimes I think the only thing holding me back is the knowledge that I'm not a giant mutant lizard.
So instead I appease my frustrations by romanticizing the notion of tossing skyscrapers aside like toys, and the unbridled joy of lack of concern for the consequences of one's actions that I'll never get to experience in my daily existence.
At least not until the radiation makes me 40-feet tall. That fire breath is going to be freakin' sweet.