As I said in my post, in the past, I have found published adventures to be useful; published settings, however, I have found to be less so. It is important to distinguish that it is the latter that we are discussing here.Nobody here is suggesting that they create settings out of their own minds and nowhere else, like the birth of Athena from the head of Zeus. What I am saying, at least, is that published setting materials are a very inefficient way of picking up ideas for one's homebrew. Supplements like Joe Browning's Magical Medieval Society, for instance, give you tools for constructing a homebrew more efficiently. Similarly, if one is looking for inspiring ideas, I find that reading a novel, or real world history or mythology is far more likely to produce new and interesting ideas for a homebrew than reading published settings is. Yes -- I'm sure that there are ideas in published setting materials that could make my homebrew better but there are fewer of them per 100 pages than I would find in the various other sources I prefer. For instance, I am currently filling notepad after notepad with fascinating ideas from the book I'm reading now: Mockeries and Metamorphoses of an Aztec God: Tezcatlipoca, Lord of the Smoking Mirror.