When you go looking for the dragon, no matter where you go to, you have to do that same thing, inspect the dragon and it's living conditions.
Every establishment/breeder takes care of their bearded dragons (and any other animal) differently, some places in certain areas are better than others. The Petco where I live in Rockville, MD is HORRIBLE however I hear that Petco in other areas of the country are actually good. So it's the luck of the draw with what's convenient for you, sometimes all the places around you are horrible and you are left to buy out of state and have the baby shipped.