Are you sure you seen the films?All the SAW movies are pretty rubbish, they're all pretty much the same each time.. bar a few rusty and generally nasty torture instruments.
But the producers have done pretty well considering the lack of depth in the "blood and nothing much else" movie genre
yeh they started off like that...but sort of tried to change it into a proper film with storyline and stuff, the human experiment was pretty much the most interesting part of it so a storyline and all that wasn't needed.i find the story of how he controls the "subjects" good especailly with the twists at the end