Re: why is there no kingdom hearts commercials in the U.S?
They exist, though I've rarely ever saw them on TV. I saw the KHI commercial either once or twice, one of those times being on the House of Villains VHS tape. And BBS on ABC Family once around 8:15 pm. (The airings for these things are so rare, I have them memorized...) And I never saw a KHII commercial air at all.
The Nintendo games were always airing on Nickelodeon, though. CoM, Days, Re:Coded, and I think DDD as well but that was right when I stopped watching the channel so I'm not sure. I swear Days and Re:Coded would air at every commercial break.