I’ve come to see Saul as one of the more redeemable characters on the show. Sure he’s a sleazbag lawyer... But it turns out he’s really an excellent sleazbag lawyer. Or perhaps better said: he presents himself as a sleazeball, but inside is actually decent person. Every other character is trying to show a decent exterior while they continue to rot from the inside.
The transformation of Walt from the first episode to the last is what makes the show. There really was a decent guy there once, and he has slowly, through thousands of tiny decisions and a few big ones... Evolved into a monster that his old self would never recognize.
I would give kudos to AMC also, for ending the series on a power stroke. Too many series try to run for too long... Long after the writers run out of ideas. Some others are doing that too. Burn Notice is doing it.
That's quick thinking under pressure.
I think Vince Gilligan is just following the natural story arc. And a good story it is.
So, what is Walt planning to do with the M60 and the ricin? I am dying to know.