In a fellowship I am in the idea came up to create a random tournament with games that the members would want to play. So everybody should suggest a game which would be included. In this fs more people would like to play Hyper Backgammon or Backgammon than Spider Linetris for example. But if 5 people vote for HB and one for SL, the propabilities for each would be even, so 4 people would choose a game that they don't favor (for not loosing their votes).
Now it would be a nice feature if one could edit the propability for each game type in a random games tournament, so that in this example the chances of playing HB in a certain game would be five times higher than to play SL. This could be done by assigning a value to each game type, which would be defaulted to 1. If you want to create a standard r.g.t. you simply let it as it is, but you'd have the choice to change the values as you like.
There could even be poll tournaments where every member that signed up could vote for a game type that would get a higher propability, so the distribution of games somehow reflected the preferences of the players.