If this is a building fund or shul campaign I would understand. But this is a campaign to pay for medical expenses. There shouldn’t be a “keep raising” campaign strategy once the expenses are covered.
At the very beginning they estimated the need for 2-3 million. They started with 1 million because they didn't think a small group of Stolin (in America only), was capable of raising more than that. They said, at least 1 million will help with some relief. But BH Klal Yisroel has opened their hearts and they saw that they can do much more BH.
Regarding expenses, it's not only surgeries, etc., though that is a large chunk.
Clothing loss itself costed about a half million NIS (a couple hundred boys lost glasses, suits, and hats)
There's unemployment for people who either can't work themselves or are attending to family members and therefore can't work.
There's lots of physical and emotional therapy needed. Some things are covered by the insurance. Some things need to be done private for much better professionals than the insurance offers.