What are the disadvantages of an arranged marriage?

Arranged marriage is mostly for the benefit of two families. More likely than not, the actual people getting married don't really like it because they don't even know each other. Well, I assume the guy wouldn't really mind. We usually hear of the girl hating it. The guy might not like her too, though. They might end up with a shitty relationship but their parents don't give a **** because it's for money.

If you have to ask...