Just an FYI, I thought about taking the water taxi to Nats Park because I was down at the National Harbor for Maryland Crab Fest. It's kind of steep for transportation at $25 but if you are taking it just one time for fun it's not bad.
That was my thought about the Wtaer Taxi - it was a little pricey, and if you have a group of four (wife and kids), it gets real expensive real fast.
Has anyone seen what they'll be charging for the round trip from the Ballston Turtle? I work in Ballston and usually just drove over to the $15 lot near home plate. But if I can ave some real money, I'd be interested.