The $400,000 Missile Bringing Down Those Balloons
The United States military has fired AIM-9X Sidewinder air-to-air missiles to down the alleged Chinese spy balloon and other mysterious flying objects spotted over Alaska, Michigan and Canada in recent days, but the first missile shot at an object over Lake Huron on Sunday missed its target and...

The cost of a high altitude balloon large enough to carry enough payload for a modest / miniaturized spy equipment is up to $1,000.
The cost of surveillance package given China's ingenuity to improvise and make things at ridiculously cheap cost could be had for only $5,000 or even less. Total balloon cost: ~$6,000
The cost of the Aim-9x heat seeking missile to shoot it down is ~$600,000 if you include licensing and taxes.
Hourly cost of flying the F-22 is ~$44,000. Total shoot down cost: $644,000 is well over 100x the cost of Chinese Balloons, assuming a 100% probability of hit but the missile sometimes miss because the missile tracks heat and weather or spy balloons emit very little heat.
The Chinese could simply send swarms of civilian weather balloons over the American continent and force USA to commit valuable resources and you can't accuse China of wrongdoing because civilian weather balloons aren't legitimate targets. But you can't really distinguish one from a spy balloon until after you shoot it down and recover the wreckage.
Even the F-22 is far from the ideal tool for shooting down balloons at high altitude. With recent experiences gained, they'll need a high flying aircraft that can remain aloft at much slower speeds to make it possible to shoot the balloons down with guns or even possibly to rip the envelop open with a sharp blade extending from a boom. Such methods would also make it possible to recover the payload more or less intact for further investigation and research. Fortunately, there already exists a UAV like the Boeing Condor that can fly slowly at those altitudes and could shoot those balloons down if it had a gun. UAVs would be vastly cheaper to operate than F-22.