Okay, the idea behind a successful facebook page is your mindset. Look closely on your facebook page and facebook profile, both are way different than other. You need to understand what you are upto. If you want to promote your product then there is a very costly way to promote yourself on facebook via it's adverts. In the other hand if you want to increase your fan base then don't promote any product, you should always interact with your audience to help you reach more users on facebook. If you interact with your audience through your page just like how you interact with your friends from your profile.
So, yes! It's about your mindset. Hope this helps.