Lestat, you have right, many apolytoners desire a unique flavour to their civ. Beyond this, where I agree with you, Adm Naismith has right: the game is difficult to manage enough without more marginal add-ons, so why add unnecessary difficulties/micromanagement, which don't add to much to the gameplay?
I hope Civ3 will have a much more challenging trade system than Civ2 had, and I think new ideas are always wellcome in this area (and not only here, of course, but in every aspect of Civ), so keep posting, even when others have different opinions
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