Laura,
I used to live in Pt. St. Lucie and my parents still live there. When I was younger it was boring to me cause there is not very much nightlife for a 20 year old. But now that I am older I love to go back there. It is very peaceful. The homes are very cheap there because it is a develping area. for 150K you could have a HUGE and VERY nice home with a pool and a yard. Its only 15-20 minutes to beautiful beaches. There are some very private beaches there as well if you know how to get to them sometimes you will be the only one there.