Dragonball Evolution... Why?

I am following my "why" rant of Steven Spielberg's take on Oldboy with another film that just looks horrible and should have never been touched.  That film, Dragonball Evolution.  This is based on the Dragonball Japanese manga/anime series from several years back.  I have been a fan of Dragonball and Dragonball Z while I was growing up.  I still like it, but I haven't watched the anime in a while.  I just watched the trailer for the live action film, and it just looks horrendous.  When I first heard about them making a live action film of Dragonball, I knew things were looking very dim.  I questioned myself "why."  Now, after watching the trailer, I think I lost all hope in the film.  I probably will end up watching it anyway and hope for a great surprise, but I really don't know if that would happen.  Of course, I can't judge a film without actually viewing it, so I will have to wait patiently for the release.  Maybe I'll come back with a different opinion all together.