I'm debating whether or not to add a sink area to a bar area in the basement. We are in the planning stages and already had roughed in plumbing for a bathroom. We could put the bar/sink backed up against the same wall as the bathroom sink.I think. I'm no plumber. Is this going to make it cheaper/easier to do?

Is it necessary to have a sink in the basement at all if there is access to a bathroom sink? (I know it's nicer). But, the rest of the floorplan would look better with the bar in another place (w/o sink). I guess I'm asking if it is worth the cost in time and effort to add the sink.

Opinions please?