I personally prefer finding a locally sourced honey. My problem with [fill in name of major honey provider] is that they usually get their honey from both comerical internal and external sources. The external sources often put filler (aka corn syrup) in the honey and pass it off as the real deal. I don't object to corn syrup in principle, I object to '100% honey' that isn't '100%'. I drink juice drinks that are part water/corn syrup and part juice, but they are correctly labeled as such.
With that said, if you want to go in real bulk, you can get 5 gallons/60lb of honey from some people, usually in th $200 range currently