Maybe because the child is older and they think the child won't be "as much work" as a baby or toddler? I don't agree with that thinking - a spot is a spot, and frankly, I find a lot of older kids much more difficult than little ones - but I've seen ads saying something similar, and I have a casual dck who is 7 and mom has dropped numerous hints that she shouldn't be paying as much as a younger child because apparently 7 "so much easier" than a toddler.

Not saying they are justified at ALL, just thinking that could be how they are thinking.

I would consider filling a spot just for the summer, but not at a lower rate than normal...my regular rate is still cheaper than summer camps!