Maybe for some, but all the soccer fans I know in Seattle were soccer fans before MLS came to town. And I doubt that resentment could have sustained an interest in the sport even as long as it took for them to field a team. MLS is staggeringly successful in cities like Seattle and Portland because the league put teams in markets already hungry for the sport. They could have played the "find the biggest TV market" game, but saw the folly there. Build on the markets you already have one foot in, even if they're not the largest. For that, MLS has been rewarded with devoted fanbases and a tremendous energy behind the growing sport. I don't doubt that it has also resulted in increased revenues through ticket sales, merchandise in the like. Ask them if they'd trade that for apathy in the largest geographic footprint possible.