Sure, you have to take reviews with a grain of salt and all, but that doesen't mean we don't head to our favorite sites to see what they give a game we're interested in.
Mine are:
RPGFan, reader reviews, (blogs, VGchartz, etc), and anyone who gives a game I like a good review (just a temporary thing) 
Person 1: Does Valkyria Chronicles have trophies?
Person 2: No.
Person 1: Forget it. I'm not buying it.
Person 2: Wait! It's amazing! Unique, charming, drop dead gorgeous... Hello?







