Bravo loves its Real Housewives brand. Why not? They are cheap to produce, the women are free publicity generators and the show gets huge ratings and brings in big bucks to Bravo. They love it and audiences love it. With all of that money being made by Bravo, now the Housewives want it too. They want their pay doubled or tripled or threaten to walk. I say the ones that threaten to walk, let them walk.
Some like Teresa Giudice think they are crucial to the success of the show and deserve huge bucks. I think people like Teresa make the show good, but I don't think it is reliant on individual people. Many of the wives have left on many of the different cities. The shows are still popular. If Teresa thinks they can't find another housewife like her in the State Of New Jersey than she is out of her mind. I am sure the show would love to have her back, but why pay her a fortune when she can be replaced by someone else. I think replacing also keeps it fresh. How many times do you want to hear the same arguments repeated? I get it that Danielle is a scary person. I get it that Teresa is willing to yell and scream for money. Now, find me some new people to interact.
Law & Order realized that you could dump characters and even though people were really attached to the character, the audience would continue to watch if the show is good. Obviously Real Housewives and Law & Order are worlds apart when it comes to quality but the idea remains.
The show is not about the individuals, but what happens when you throw them all together. It is like The Real World for people who think they are rich and have had a lot of botox.