When was the last time someone's software project failed because they created a usable version too quickly? Thinking that you can spend 30 days and then never

When was the last time someone's software project failed because they created a usable version too quickly? Thinking that you can spend 30 days and then never touch your code again is stupid. However, setting a time constraint that forces you to make decisions about what to leave out in order to get your code to a stable usable state isn't such a bad thing.