How difficult or easy it is to get tickets for an event depends on how popular the event is. It may be very difficult to buy tickets for the biggest NFL games of the year like the Super Bowl or the college football Rose Bowl Game. This is because hundreds of thousands of people on the site are trying to buy stadium seats before they sell out. Ultra-fast bots also make it hard for people to buy tickets. This is because they buy out hundreds of spots only then to resell them on StubHub or Craigslist.