The good answer is "when their one yr renewal is up, their rates will be going up too"
Current famlies and famlies who have already signed a contract, I feel should stay the same, and new clients could pay more. It's kinda like going to a restaurant, you order a meal and its 12.95 and think hmm thats within my budget, but then how would you feel if then you got your food and the bill was 16.95? Or how about you order cable tv and you sign up thinking its $45 a month, and then you get notice it's $55 when they come to install it...Just my opinion.