My roommate Laura bought tickets for a One Direction concert in 2013. We were talking about how much can change in 16 months and how hard it was to buy tickets that far in advance. What if they break up? What if she no longer likes them? What if someone schedules their wedding or some other huge event that weekend? All kinds of things. Then she said, "Yeah, I mean who knows, in 16 months I might have a real boyfriend and not need to go." Haha awesome. I love her.