Paid peanuts...
The last camp i worked on in England had people from the following countries; Argentina, Brazil, Portugal, Spain, Mexico, Italy, Germany, Austria, Hungary, Russia, Ukraine, Switzerland, France Belgium, Turkey, Taiwan, Japan, China, south Korea, Greece, saudi Arabia, UAE... I'm sure I'm forgetting a couple of countries though.
You can also work in Germany for 500euros a week after 20 weeks it goes up to 700 euros with a payrise of 600euros in between... There are also summer camps in Spain, Romania, Italy, Turkey and Hungary that don't pay as much but more than camp America when you take out the expenses.
If I were to work in camps in USA then I wouldn't go through a middle man like camp America, I remember they wanted expensive administration fees, pressured sold me into booking a flight when I said it wasn't 100% confirmed that I could make it, they told me not to worry and when I finally booked the flight and then was confirmed I couldn't make it they tries with hold my money.. Thankfully I got it back after a load of e-mails and me sending proof of their responses to me...
Camp America to me do well on preying of students who are young and don't know their possibilities... If you really want to work in the USA then its an OKAY option... If you want to work in a summer camp then go somewhere else. The last 3 years I have travelled for 3/4 months after camp to; Mexico, Colombia and Brazil this year. I highly doubt you can do that in the USA unless you go with pre-saved money.