For tennis camps, instructors should be mostly full time (not all college kids). And the student/ teacher ratio should be 4 to 1 or better.
Note that accommodations have a huge impact on price. The well-regarded Nike Amherst program starts at $460 with stays in dorms, whereas hall-of-famer Dennis Ralston's could run $900 if you choose lodging at Mission Hills Country Club.
Look for camps at tennisresortsonline.com.
