Kamikaze Economics

A single S300 missile costs over $1,000,000.

https://profoundadvices.com/how-much-does-an-s300-missile-cost/

"How much does an s300 missile cost?

(One S-300 missile system is estimated to cost some $115 million, the cost of each missile is over one million US$.)"

A complete S300 system would be North of $100M; A beggar nation like Malorossiya would not be able to afford huge numbers of them.

Now, I haven't seen any real cost figures for the little Iranian kamikaze drones, but...

The electronics and air-frame couldn't easily be more than around $2000

The warhead, another 1000 maybe (guessing)

The only thing halfway expensive in the picture is the engine, a German design that would run a hobbyist around 20K, quantity one. For Iranians to manufacture those or purchase them in bulk, you'd likely divide that 20K figure by five or ten. Those things are very sophisticated for what they are,but you're still only talking about a small 2-stroke engine.

Russians are either buying those things in bulk from Iran or they have a license to manufacture them. Total cost quantity one to Russia probably 5k - 10K.

Consider what that means... Even if Ukronazis get lucky and manage to bring one of the Shahed/Geran drones down with an S300, they've just expended a 1M missile to stop a 5K toy airplane.

The ONLY cost effective way to shoot one of them down would probably be with a phalanx gun or some such and you'd have to get lucky. Flight-paths are pre-programmed and Russians could simply set the last 300 meters or so at 40' off the ground.

I'm guessing that ukies shot some of them down with missiles over the past few days and that they don't have a whole lot of missiles left, Reports are that Russia just ordered another 2400 of the things.........