The reason that I don't think this is a very good comparison is that if you buy a fake ticket, you are screwing over another fan who paid money for his. However if you buy a fake jersey and wear it, what is the harm that you're doing to those who paid money for an authentic jersey. Except you do screw over the player who's not getting royalties, the average NFL, team, or company American/Canadian employee who's bonus or pay could be less (or loses their job because of less sales), and most importantly the person child that made your jersey in a work environment that isn't regulated at all.* That's a pretty darn indirect and diluted effect when compared to paying for a ticket and finding your seat occupied. And frankly, the consumer feels he is getting screwed over too in an industry where, for example, replica NBA jerseys are intentionally crippled with ridiculous wide shoulders to "force" you to buy more expensive versions...bootlegging is illegal, but bootlegging and price gouging are both unethical. And, given the importance of the brand and license to the consumer, it's a bit of a virtual monopoly situation - obviously one that can't be resolved, but there's hardly a legal "generic equivalent" to an "NBA jersey of player X". One can appreciate how the NBA and manufacturers jacking up the price is unethical in the sense/spirit of the reasons for antitrust laws.