I get what people are saying about Balston, but I suspect the cost of a bus isn't that different from Reston vs Balston given the block of time it is unavailable for alternate use.
Having rented buses for various reasons, I can corroborate this. They charge by the blocks of hours, not mileage. I think the real issue is that for fans it costs less to take the Metro from Ballston. But it's a minor difference.
The decision is really a personal one in that it places a cost on how much you value the convenience of the bus. I can def see myself taking this from Ballston when going solo.
