black rhinos

I read a story about black rhino its highly endangered but a man is paying 350,000 dollar just for a simple rhino horn. I think is stupid because they are highly endangered but that man payed  350,000 for a permit that last for like a month. people are using fancy equipment like military helicopters,night vision cameras,and gun with silencers. experts are saying that rhino horns a wanted more than all the drugs, a kilogram about $20,000 that's a lot of money for just that much and the rhino horn are like 20 pounds that' a lot of money for 20 pounds. so ask yourself would you kill a rhino for $350,000?