Anime is cool because you get to see things you otherwise would never see in real movies. Also it was the logical progression from Loony Toons growing up,
except america thinks anything animated is just for children and Anime proves this idea wrong, letting thoese that enjoy animation to still enjoy it with more mature stories.
Also the Stories often end, people die, and fans can cry for 30 years and the makers will still not make a squeal which makes you want it even more and the memories that much greater.
While America makes anything good on TV run on and on until they drain the life out of it. Plot points that could be explained in 1 or 2 seasons end up running on for too long and make you wonder why you ever liked the show to beginning with, hence Heroes, Smallville, 24, Lost, see my point?
As far as Japan goes, Tokyo is literally the most technological city on the planet, making it seem almost like a portal into the future, everything we like in with games and electronics is invented or innovated there. Yet with all this technology, there still is this sense of honor in there culture, low crime rates, respect to fellow citizens, which is romanticized in all there shows and movies so it might not even be true, but we won't really know since we are not there.
I think Japan just seems like a nicer play, with cooler toys, hot chicks, and a beautiful culture where america (while great in many ways) breeds ass holes, with bad manors, dog eat dog american dream seeking, big city new york swearing, MTV, hip-hop posing Image. That well, we are forced to deal with everyday and place like Japan just sounds a whole lot nicer. Many of the things that Make america so great are the same things abused by the majority to that make living here sometimes rather enjoyable.
You might think Japan is probably just as shitty, but see, that's the proof right there. It's just an american perspective, because we think we are the best and everywhere else must suck. But, ever wonder why when Americans vacation they go everywhere else but america, lol.