The point is, you are imposing scarcity upon the show, which does not exist in the show.
Consider Moriarty episodes (http://en.memory-alpha.org/wiki/James_Moriarty_(hologram)). Again, no mention of constraints on holodeck usage. You're inventing constraints with no evidence from within the show itself. Moriarty ends up living in an endlessly running holodeck program.
Consider also a replicator. It ends scarcity of food (or anything it can replicate, such as itself). Under a scarcity model, food should have no value since it is no longer scarce, and no one should want to produce it. But such a model is irrelevant since no one has to produce food anymore: the replicator does it. Old models based on scarcity simply don't apply.