The transition from EI to the DOE school system can be daunting. That the school pays for everything means, that just like services that Tori receives now (OT lets say or speech therapy) those services after 3 are provided by your local school district and they are also free.
Remember, no matter the system you are dealing with, Early Intervention or DOE, you are still the most important person in Tori's care and when all is said and done you know what is most important for her and your family.