20 barrels of honey for 4 drones seems like a realy bad deal.
If its araund 160 liters of honey per barrel, that is 3200 liters of honey. 1 liter of honey is araund 25 euro so ... 80.000 euro.
So the guy paid 20.000 euro per drone ....
One drone to be good for military use costs 1,349.90€. He could get 59 dones for that money.
Russans are realy bad at economics..