Code on timeline's frame vs AS file

Here i’m actually not talking about a problem but rather wanted to raise a discussion thread. (Kirupa you may also move this thread to some other more relevant section!!!)

Few of my good colleagues till prefer writing code on the Flash timeline, on the frames (code as bigh as 100-150 lines), rather than using external AS files, when rest of the world has reached to AS 3.0 which is close to Java (OOP).

I’m just wanted to know the big benefit of writing the code on the frames. I know that it is highly un-manageable and I have personally faced many instances of code not initializing, or behaving strange on a frame.

I know i’m trying to take the discussion to as back as Flash 4 and 5, but wondering why few of the people still not coming along!

Please put some light!