What’s the cost of a single laser? Russia is launching hundreds of those per attack, over a large territory. With a range of 5-7km you’d need _a lot_ of lasers to effectively cover a reasonably large city.
If we take 4 million per interceptor at fact value, you can compare them on cost basis. More area coverage for less money would be a potential benefit. Alternatively, reusability could be a benefit if we expect prolonged conflicts or many more of these situations in the future.
perfect is the enemy of the good
No idea. I would imagine one would have to call, negotiate, kvetch, negotiate, stall, and so on.