This seems to be based on an erroneous assumption that people only care about one sport, which is ridiculous. True and (somewhat) false. Based on the people I've met who align themselves with Seattle sports, on seeing TV reports from news shows and sports-related media on YouTube, and on other sports blogs and forums I've read articles on, these are my rough estimations of what percentage of their pro teams people in the Northwest tend to show the greatest interest towards. Given the saga of the whole Sonics relocation and their (failed) efforts of acquiring the Sac Kings, I tend to believe Seattle is a basketball city (also helps that their only pro championship was won by their 1979 NBA team). There is so much anger and hostility those people have towards Stern, Bennett and Schultz for their treatment of their NBA team, that anything they do gets the attention of the local media and the people running the whole "Sonicsgate" campaign. The Seahawks are picking up steam with Pete Carroll and Russell Wilson running the show, while the Sounders have opened up the Northwest region as a very viable one for MLS and all of North American soccer (also the fact that the Sounders picked up casual fans distraught by the Sonics relocation in mid-2008 when their team was promoted to MLS status for the 2009 season). So they both have the next share of interest. The Mariners (as Kramerica or whoever else pointed it out) have been mostly an abyss for their franchise, who are the remaining AL franchise to have never won their pennant,* so they get the last share of attention. But the whole "people only caring about one team in multi-team cities" does have some validity. For example: -Detroit has four teams, yet it relies on the Red Wings first and foremost for success (although the Tigers come in a close 2nd). -Los Angeles is a Lakers/Clippers town; even with the Kings/Ducks and Angels/Dodgers, the talk of this city (especially of the media) is all related to basketball, from the absurd trade "proposals," to the drama off the court between the players, to the even-more ridiculous comparisons to legendary players (Kobe vs. Jordan/LeBron/Magic/Bird). -Dallas' allegiance is with the Cowboys first, followed by the declining Mavs, the Rangers and the scrappy Stars seeking attention. -In Miami, LeBron has transformed that city into an NBA city. All the sucking the Dolphins have done has alienated those customers, there's the screw job Loria has done with the Marlins, and who in Miami pays attention to the NHL's Panthers on a nightly basis? *I don't count the Astros in this factoid, since this is their first year in the American League. But even so, they do have a 2005 NL pennant, which means they have one more league championship flag than the Mariners I will concede that there is some validity to the argument. But loyal fan allegiances are usually built on championships. Every instance you cited is due to a winning tradition. Seattle hasn't had that yet, outside of the 79 Sonics, which may explain the nostalgia and anger surrounding the Sonics. Another factor that makes the Seattle sports scene different is our perception that we get shafted in national media coverage. Therefore, our fan base is a little more fluid. There are some who stick to one team in one sport, but I'd venture to guess as high as 70% will throw in with whichever team is doing the best. Most of the sports fans I know in the area are like that. We have our favorite teams and sports (Mariners and NHL for me), but we'll show up to support whichever team is winning (because it's usually only one team at a time). I've seen Key Arena packed for Storm games over the last few years. In person. Because as much as I hate to admit it, I'm a fair-weather bandwagoning Seattle fan just like the rest of them. But can you blame me for just wanting to get caught up in the excitement of a winning team? If the Mariners start winning on a pace that will put them in the postseason, the Sounders attendance will start declining. If the Coyotes come to town and make the playoffs, they'll have solid attendance. If they make it deep, the fanbase will even give them a two year grace period like we did with the M's after the 2001 116 win season. There just hasn't been enough of a winning tradition with any one of our sports teams to foster the same rabid loyalty other cities have.