I've seen a lot of messages here about people "experimenting" with this and that variant (rules, classes, settings, whatever) in a new game campaign. It's always the reference to a "campaign" that gets me -- exactly how many game sessions do you expect to sit through in order to call the series a "campaign?" Because if it's just one or two games where the players craft fully progressed characters (say, 10th level, for example) and only last until the next concept catches your attention ... well, that's not really a campaign.