Not trying to hijack, but....
I'm sure we've all seen the abuses of the system, but here's a little different perspective that I had not considered until recently:
We have some friends who do pretty well, their children are grown and they are still young enough to keep up with a few kids. So, they work with a church organization that helps the state with foster children. At any given time our friends may have from one to four foster children in their home. Each of the children has money allocated to them for a certain amount of their support and their money comes in the form of the LoneStar card. Our friend said that when he grocery shops he has to seperate the home groceries from those purchased specifically for the children (diapers, formula, baby food, etc.) and pay seperately for home groceries and each respective child. He said that there have been several occasions where people have given him a hard time because he was dressed nice and buying some steaks or something along with things for the kids. He's a really nice guy so he would never tell them to pound sand. He just explains the situation and points out how the items are seperated and has them watch how he pays for stuff. BTW, he also stated that each of the kids end up costing them money because the allocation they get from the state isn't nearly enough to cover expenses. So, in his opinion, if people do it to make money, they must be cutting a lot of corners and not helping the kids very much.
I realize this is exception and not the rule, but it's certainly something to think about.