Yes in the recent Iran attack on Israel the interceptors cost about $3mm each and the drones range from $20k to $2k. That asymmetry leads to a calculus of attack through overwhelming mass that’s so vast it’s impractical if not impossible to resist it.
https://www.businessinsider.com/suicide-drones-much-cheaper-...
https://www.politico.com/news/2023/12/19/missile-drone-penta...
https://www.wsj.com/livecoverage/israel-iran-strikes-live-co...
In fact the US DoD is already proposing a “hellscape” capability this is precisely built around this idea as the primary method of countering China in the future.
https://www.defenseone.com/technology/2023/08/hellscape-dod-...