Bit of a wild concept, really - the ILS sits there radiating no matter what, so it's academic whether anyone's flying down it or not.
This whole user pays stuff gets a bit stupid sometimes.
The navaids are there as a safety feature, and should just be provided out of our taxes as one of those things you just have to have.
It's like having to pay a charge for having a traffic light at an intersection, and doing so on the basis of how many times you drive through there.