A blog's legacy

Say... fellow bloggers/readers. Here's a question. When do you cease to blog? I'm curious...

And would it be more of a gradual close (blog dies slowly) or an instant one..?

Perhaps when you realise you don't have time to blog; through some big thing happening to you ; getting a job, moving, getting a gf, etc.

It could even be that the blog gets so boring nobody wants to read it, or your blog is just lame and people read it to get a good laugh. xD

I'ts not that I'd stop anytime soon, just a thought.. ( well maybe.. depends on the circumstance )