I'm going to have to agree with GP on this one: this line of thinking is an excuse. 50 different people with is not a replacement for a partner who is wholly committed to you and you are wholly committed to them. You will never be able to give or receive the same level kind of love and security with a network of that size.
That doesn't have to be the same person every day. It can be 50 different people. It can even be your self.