PS: In fact, the most reasonable way to share this network cable is to have one person and half. This is just a way for him to unify half of you. If you really can't, just make one yourself. Let him do it himself. After all, according to what he said, making a big one is not much different from making one yourself. He has so many computers and the internet is much wider, so you are uncomfortable to play with.
Continue PS: I just graduated and shared with my classmates. My own network cable is for four people and three computers, and I didn't charge anyone for it. It means that if you are really friends, you don't need to care about money.