This is prompted by a family thing more than anything, but I don't get why people bother getting engaged if they don't even have a rough date to get married (e.g. summer 2012, etc).
This is prompted partly by my brother who has been engaged to his fiancee for six years now with no plan to get married at all. It irritates me to see on FB that they're engaged. (They say the only thing stopping them is lack of money)