User blog comment:Dark Jeto/Why I Believe ESO will Survive and Thrive/@comment-13446185-20140307205618/@comment-16047389-20140310132600

It's more just a metaphor. But ultimately, like the Highlander, there can only be one. Or rather, there can only be one dominant MMO. ESO wouldn't be able to be as popular without stealing a large portion of WoW's community in the process. Usually people who play MMO's only have one active subscription, so they choose which MMO they think is worth paying for.