Here is a good argument on cost:
If you want to need to get to a restaurant for a business meeting and it’s just around the corner, you’ll probably walk. That’s the cheapest way. But if the time is short and the station half a mile away, you drive or take a taxi, right? There is a remote possibility that the street will be blocked; but nothing in this life is absolutely sure, and the sensible thing is to be as nearly sure as possible, even if it costs a little more.