To play for our 17-18 summer program in the past, the cost per player was about $1,000, assuming an 18 person roster. This included airfare, hotel accomodation, etc... for one far away tournament, as well as all other costs. The out of pocket expense to each player was about 30-40% of that thanks to sponsors. We as coaches always paid our own way. I know that some programs build the coaches' costs into registration fees. Nothing wrong with that, they are volunteering their time, we simply have chosen not to go that route.
For this money, we feel like our players were treated well (good coaching, quality competition and exposure, 50-60 game schedule, etc...).