I've been looking at hotels in Atlanta for ProgPower and it seems that you can get a good hotel downtown for about half the price of staying midtown. Obviously I would prefer to stay walking distance to the venue, but saving a couple hundred dollars on a hotel is a huge deal for me. My question is whether this is a reasonable option? Does MARTA run late enough that I won't need to leave the show early? This would be a blind buy through Hotwire - so are all the downtown 4 star hotels (probably the Westin Peachtree, Hyatt, Hilton or Sheraton) within a short safe walk of a MARTA station? Thanks in advance.