Honestly, I think that's why Square didn't add more wards, there's Ul'dah/ignored districts that are waiting to be filled. Probably also why the new wards started at their max value and will be going down in value on a monthly schedule, to make people go, "Hmm... can't afford the lots for a while, where else is open again?" And even that, there's still lots open in the secondary districts. Just not the medium/large lots. With recent changes it's not so bad to grab a small lot.