Haven't done an away game for 20 years so it never really mattered.
Personally though, I am quite happy to go without smoking for hours on end, I do when I fly so never really give it much thought.
I'm a smoker but never feel the need to have one in the very short time you are actually inside The Amex.
Also, the thought of having to climb those bloody stairs twice on match day does not appeal to me in the slightest.