Comment by sabujp

Spy balloon cost : $3k - $50k , you can even buy them on alibaba and some other sites:

    https://www.alibaba.com/product-detail/China-hot-sale-surveillance-balloon-with_60454941082.html

    https://www.made-in-china.com/showroom/jennerjiang/product-list/catalog-1.html?view=0

Cost to shoot down balloon with F22 $400k for the AIM-9X, ~$85k for 1 hour of flight time, so ~$400 - $500k to shoot down one balloon that cost < $50k