A free market takes care of all the needs of all the people far better than government force. This is true in education as well as in other things. If there is a profit to be made from the care of special needs kids (and I think there is) then plenty of options would be available under a free market. Just because something is expensive does not mean that the only possible course of action is to turn it completely over to greedy politicians. If there is not a profit to be made, then plenty of charity options would be available to parents of special needs children.
Even in the government school system introducing freedom of choice would be helpful. Some school treat special needs children better than others and the parents of these children should be allowed to choose the school that provides the best situation for their particular child. Schools that fail to provide services that families want should be closed and the resources put where they will do more good. Instead, right now we have political decisions guiding the school systems.
Avalon, a free people find solutions to problems. There will never be "no options" for anything in a free world. If that situation ever comes up for you, I'll bet you will invent options. You won't sit there with a problem and demand that someone come and solve it for you until you die.