My post was admittedly a bit curt.

The implication was that you have to get to Metro Center, and then it's 50 minutes. For me, that means a solid 90 minutes door to door including a bus and two trains (with bags). DCA is less than half that for me.

I would do it, but tough sell for most other people in my life (wife, parents, etc.)

Also just frustrated that they can't run an express train. a 20-min ride from MC to IAD would be incredible.