Several years ago, when most of my group were still newcomers and unadapted to 4e, I asked my Dungeon Master which Skills to use in gambling situations for money, and how they should be used. He did not know an answer based on balanced rules, and ended up inventing a homemade skill called Gambling.
I want to give this opportunity to my future players, and make it an important and fun experience. I don't think it would make sense if all players rolled a d20 and whoever have the highest roll takes it all. Because that is what we players do, whenever we do everything else in the game.
That leads to my questions:
Are there there any material published by the developers of 4e on ingame gambling? Rules, guidelines, articles, or websites?
Should it be the case that there are no rules:
What skills should be used, if any, and why?
Have you experienced a good way to gamble without using skills? (Skills just seem to be the obvious choice)
The pitfall of gambling
Introducing another path for the players, to gain wealth and income, could cause problems. (it's the same possible challenge if the players invest gold in shops or trades that generate increased income) If the players get rich and famous from anything else other than adventuring, it seems they would start lacking the motivation at all to leave the city gates. Nobody wants to dirty their fancy new clothes with mud and monster blood when they can live like kings in their new mansions. If they have the money they could just hire others to do the dirty work.
How do you make the best balance on winning and losing, without cheating the players on the outcome of a game?
And how can you successfully prevent gambling from becoming the main source of income in a story based champaign?