I would never go to an event without a paper ticket for the reasons laid out above. Not really hard to print them. Edit: it appears that these barcodes are not available until cloe to gametime, so maybe it is a little more difficult to print them. I'm not familiar with that phenomenon. The new arena is pretty much all paperless except on a "case-by-case" basis You may have heard inklings during the opening days of Fiserv Forum that the arena was going paperless when it comes to your actual tickets – meaning they've all gone digital, with no more printed PDF tickets or anything like that. According to Jamie Morningstar, senior VP of ticket sales and service for the Milwaukee Bucks, they're far from the only place going in this ticketless direction, as venues and festivals across the country and globe nix paper stubs and PDFs. https://onmilwaukee.com/buzz/articles/fiserv-forum-how-to-tickets.html Now, let's say that you own a flip phone or your mobile device died while you were enjoying a beer before the game or you don't own a computer and you don't have a library card and internet cafes haven't existed since around Y2K. You can still definitely get into Fiserv Forum. "You can give us a call, and we have solutions for those folks. At no point is this technology meant to prohibit any type of person from getting into the building," said Morningstar, explaining that they can print off tickets or verify your tickets on location at Fiserv Forum for those in need. But they handle these all on a case-by-case basis – and honestly, that'd be more of a hassle than simply downloading an app, making an quick account and hitting a few buttons.