text: The first reason that getting multiple opinions is beneficial, is that more people know more about what you're trying to decide on. For instance, if you only talked to one person about getting something expensive you could and up wasting your money due to an uneducated decision, but if you'd talked to multiple people who know what they're talking about then you would've know it was a bad decision in the first place. Also some people know more about somethings than others making them more reliable. You can also get more information about something because some people will tell you different things.