Darrin Drader over at "Writing, Game Design, World Domination" sums it up pretty well.
"The reasons I think the Greek civilization is a better model for the fantasy genre is because it was polytheistic, it consisted mainly of independent city states, and because the monsters of its mythology are so commonly associated with the fantasy genre."I stumbled upon his post completely by accident when I clicked on "Next Blog" but it tied in to what I'd been thinking about for a while now. Playing in a realm of city states allows you to do some things, like war and travel between different cultures with a greater ease than you can get with a more medieval setting. It brings things down to a more manageable scale, especially at lower levels. Plus the geography of the Aegean Sea just cries out to be used in a game.
Could using this idea lead to a Hercules/Xena type game, full of silly and completely incorrect historical mash-ups? Absolutely! And if everyone at the table is having a good time, then who's to complain?