Wasn’t the last US aid package some 60 Billion dollars or so? Assuming thats for a year, that would make it about 5 Billion a month. So even if every drone would cost 5.000 Dollars, it would add up to about 10% of that budget.
And from what things in Ukraine look like, we hit a new era of warfare, with a change similiar in scope to the invention of the machinegun.