$1 mil? Try hundreds of millions of dollars!

Of course it depends on who manufactures them. Arms dealers in the West produce extremely expensive stuff. For example the Northrop Grumman's US military drone RQ-4C that Iran shot down with single $1k surface-to-air missile back in 2019 cost over $220 million.

Now the same family of drone (high-altitude remotely-piloted surveillance aircraft) like Shahed-147 manufactured by Iran or Shahed-149 (which is also a combat aerial vehicle) barely cost $200k per unit! That is a 1000x price difference.