My husband and myself were foster parents for 18 years. We basically retired three years ago at the time of the adoption of our two youngest children. In the 18 years, while raising our own four natural children, we cared for 57 other children, three of whom we did adopt. We took teens in the beginning, until our children hit their teens. Then we cared for children five and under who were special needs, medically needy or mentally needy. All of the kids need love and to know some one cared.  
Now that our youngest child has started kindergarten full time, I have been asked if we will go back to foster care again. I have to answer no to that question every time. I would not change a single moment of the time we spent being foster parents, but now it is my time. Also I babysit a grandson or two, one or two days a week while their parents work.  
Our oldest adopted son has an extremely rare syndrome and his parents actually asked me if my family would adopt him. He was 22 months old at the time of the adoption. He keeps me hopping to all of his doctors appointments. With his syndrome just about anything can happen without any warning so I have to be ready to go to him quickly if I am needed. Has anyone every heard of 18Q- Syndrome?  
Our younger two are natural siblings and bi-racial. By state standards they are considered special needs due to being a sibling group and what they call a 'minority'. I call them my son and daughter, who are both beautiful children and well behaved as a rule. They are only 10 months apart in age and were 2 years and 3 years old at their adoption in 2002.  
Anyone wanting to be a foster parent won't get rich in monetary matters, but you do get rich in many others. Things that you and your family take for granted, like roasting hot dogs and marshmallows over an open fire, some kids have never done. We had a 15 year old boy, who had never blown bubbles outside in his life. My older children were in the yard blowing bubbles and he was fascinated by it. I had been cooking dinner at the time, so I turned off everything and went to the yard and sat with him for an hour blowing bubbles with him. He still talked about that just before his death in 2002, he was 32 at that time of his death. Some of the kids will stay in touch with you and others want to forget that they were ever foster kids, so you may never hear from them again. As a foster parent, you love, nuture and really care about the kids and mourn them when they leave. But for each child placed with you, you learn a little bit more about yourself and what you can do. You do your best and remember where you may have gone 'wrong'. I loved being a foster parent but just don't want to go back, I am too busy with the rest of my family now. I also need some time for me. As a stay at home mom all of these years, with kids around my almost all of our 32 years of marriage, whenever I get a day to myself I finally get to do some things that I have not had time to do before. However, I would not change a single moment of when we were foster parents. Good luck and have a bit of fun, to anyone who wishes to become a foster parent.