I definitely don't define "reasonable scarcity" as "much like things are now," but that would be my preference. Limitless abundance has the ironic problem of not incentivizing new development (definitely in the sciences/economics; many folks have pointed out that some "starving artists" would actually probably do better if they could create art without concern for their next check), and at the extreme, it becomes like that first attempt at a world by the machines in The Matrix.