Monogamy: Is it real?

Ok most of you know that im a stylist/hair dresser as well as many other things. But anyway i was sitting in the shop and i happened to pick up a magazine that featured an article on 25 black men and the reasons they cheat. The article also referred to black doctors or psychologists, men and women, who gave opinions on why men cheat. Most of their responses were the same, humans are still animals, and animals are not designed to be faithful.  Another reason given, was religion and history, and how other cultures and/or religious groups practice polygamy. I remember a guy in college stating that even the Bible says a man can have as many wives as he can take care of. Then the infamous story arose of King Solomon who had many wives. But doesn't that contradict with the Christian way of living when it comes to being monogamist?

Should we be making judgements about monogamy based on our religion? Or is it even fair ground to play on when in society we are so diverse in our beliefs? Who's to say that the men who cheat aren't the right ones?