Arranged marriages

I was talking to someone about arranged marriages, and how they turn out either for better or for worse. Then, we figured out that this is the same with many of the couples in the Tanach. Many of the couples that had arranged marriages did not have very easygoing marriages, while many of the couples that picked their spouses tended to have happier marriages. For instance, Yitzchak and Rivka were set up, and their marriage was kind of rocky. Yaakoc, however, picked his wive[s] and they appear to have a better relationship with him. There are more examples like this that support this idea. Interesting, isn't it?