I had a somewhat hypothetical idea yesterday. Suppose you have a game that can permit Euro-style gameplay but with the addition of some components, decks of cards, and rules, can also be a full-blown American, FFG-style game. I wonder out loud whether there would be any appeal to publishing the game with BOTH rulebooks included. I suspect that your audience would have to be primarily people who would want to play both games. People who wanted the Euro might not be keen on buying the bigger box full of stuff that they would never need. People who only wanted the American game might not have as big a problem with it, but certainly wouldn't find the addition of the Euro rules at all an inducement to buy the game. Probably, it would only be successful if both versions of the game are superlative in their genre. People wouldn't be eager to buy two lukewarm games just because they happened to come in a single box. But if you can get a game that offers great Euro play or, with the flip of a switch, great immersive American gameplay, that might be a selling point. Or not. I don't know if anyone has ever considered it before.
-Jeff
Not necessarily; the idea is that the games can be played with essentially the same components, although the "American" version of the game would use some components that the "Euro" version wouldn't. But there would be no more components than a standard FFG-style big box game, for example.