Our son played in the Valley League. There was no fee involved. He drove his own vehicle up there so there were no problems with transportation to games/practices. His team provided a charter bus for away games.
His host family was great! Both parents worked at the local chocolate factory so chocolate and other treats were plentiful. They cooked for the 3 players housed with them. Each of the guys had their own room. The community was very welcoming. A local gym allowed the fellows to work out for something like $10 for the entire summer.
All in all it was a good experience. Our son came home for just a week or so before he headed back to school. During that week his routine was - - eat, work out, hang with friends, sleep, then do it all over again.