Yep. Exactly like Jersey said. It's a different culture over there with different standards. Dragonball is 100% kids series aimed at 12 year olds or there-bouts.
EDIT:
Complaining about MJ instead of Gwen in the first Spider-man movie is just stupid. Comics are full of alternate universes. You don't like something, fine, deal with it, but remember that it's
personal taste. I loved the first Spidey through and through. From the organic webbing to the armor Goblin (serioulsy, spandex would have looked like shit), to MJ.
Anyway!
Movie 1: Saiyan Saga - actually a very short arc, but the movie would use all that extra time to build up and flesh out the characters. Cut Gohan's interactions with the orphans, and the robot if time becomes an issue. If it starts looking goofy, or even to cut for time, the talking animals could be cut or minimized.
Movie 2: Freeza Saga - long arc (longest IIRC) but because the characters are already developed, you can focus more on the action and new characters (Dende, Ginyu Force, Freeza). Cut the space kids and fake Nameks for sure - time shouldn't be a problem.
I can see these easily being one movie of around 2 and half to 3 hours. In fact, in my movie script, that's how I'm doing it.

Splitting this up is just dumb, IMO. Vegeta directly relates and leads to Freeza. And people seem to dislike "to be continued" at the ends of movies. >>
Movie 3: Android Saga - This would be the best movie, in my opinion. The whole thing could open with Freeza getting picked up, rebuilt, set down on Earth - then have Trunks show up and kick ass kinds of ass. I don't care how much money Fox loses on the first two movies: this will make half a billion dollars. First form Cell might be hard to do but possible, and he's not around much anyway. The biggest stumbling block would be 'not fucking up the SSj2 scene'.
Exactly how I'm planning to start my script for movie 2.

Have the opening credits and theme playing while showing Freeza being 'rescued' from the debris of Namek, cyborgified, and setting out for Earth. Build it up like he's the big bad coming back for more... and then kick him out of the film within the first five mintues after the opening.

And SSJ2 would be easy, you're just pessimistic.
Movie 4: Buu Saga - I can see this movie not being made. Movies tend to be made in trilogies nowadays (regardless of quality) - noone's making quadrilogies. Plus, Buu would be harder to do than Cell.
Spider-man 4, anyone?
That aside, Buu would be easier than Cell. How the hell do you see him as harder? Fat Buu = guy in a pink fat suit with pink make-up. Super Buu = Guy in pink make-up. Kid Buu = CGI or short guy in a make-up. Add in CGI for the stretching and what-have-you and he's done with a LOT less difficulty than any form of Cell.