Let me quickly answer that. It's all publicly available on the Plattsburgh website. They are a debt-free airport. There was $100 million spent to change it from a military base to a commercial airport. The runway is about 13,500 feet, made of concrete; it's about 200 feet less than the longest runway at Pearson. They can handle huge aircraft.
On their website they're quite clear that because they are debt-free as a result of the direct funding they have received from the federal and state governments, they can offer landing fees to air carriers that can't be matched in other locations.