Honestly? Not that much more... I ride a motorcycle, and my job requires me to make frequent, random visits to client sites (MSP). A car would be annoying but doable, and metro doesn't go where I need it.

In addition, since I spend the majority of my time in the city (I live in the district proper), I try to get out on the weekend. Easy to ride (or drive my fiance's car) out 40 minutes to Chesapeake Beach or Annapolis then it is to take public transportation. Same for the monthly Costco trip.

I mostly take Metro to go to the airport, or to get back home after walking to the Mall/museums on a Saturday. But it's too slow (at least compared to my motorcycle), and doesn't go where I need it, when I need it.