The scene with Saul saying "you don't try to win the lotto twice" brought up the issues I was feeling earlier, that Walt has an opportunity to walk away clean here and he's not taking it. I'm not sure his excuse of "Well, I owe $40,000" is enough. 40K doesn't seem like that much to have to risk everything he's risking by starting a new enterprise, buying new equipment, chemicals, buying people off (how much is this all going to cost) to take on the cartels and putting his family Back In Danger. At least, $40K doesn't seem that much when the car wash is profitable on its own (per Skyler) and he has years of healthy living ahead of him.. Hank can walk, they're probably at the tail end of those bills. Is Walt really going to go back to war over the cost of the Mustang excursion? (And how has Skyler not yet noticed the refund they were due from the dealership never materialized?)
I feel there must be something else, probably the return of the cancer, that's motivating him here. I don't buy it's just pride in his product and a desire for $40K just yet. If he really has a profitable business and many years ahead of him, I don't buy him jumping back in with both feet.
		
		
	 
How can you not understand?  He's a criminal now.  It's that simple.  He doesn't want to own a car wash.  He wants to be a criminal.  The show is "breaking bad".  Previous seasons are about the journey to "bad".  This season he is just bad through and through.
		
 
		
	 
I don't want to drag this thread down with my personal opinion. Just quickly, thinking more about it, I think I just really bought Walt was really at a place in his life where he could walk away by taking the drastic step of calling Saul's vacuum-cleaner repair man and paying him all the money he had saved up. If Skyler hadn't given it to Ted, that's what Walt would have done. Only about a week or so has passed on the show since then, sure, there was a lot of stuff happening in that time, but Walt was ready to walk then, and got out in a different way but with the same amount of money--$0 to his name--but at least he has his name, his identity, the house, kids are safe, etc. Plus a working business. Killing Gus was big, but, Walt's killed people before. If he was really willing to call the vacuum repairman, I'm not entirely sold that $40K is big enough to him to risk his kids over. I think I 
want there to be something more pushing him.