Mine is around 6, which I suppose is why I think I have a pretty good chance of retiring in 10 years. My wife and I aren't all that LBYM (we generally buy whatever we want), but we still manage to save a decent amount. We both make around 90k (180k gross), but are planning on retiring once we hit 1M.
I've always assumed we'd change our lifestyle once we retired, which is how our number became so low. We both enjoy the outdoors, we have families from the woods of Wisconsin & Michigan, so we figure that's the type of place we could retire to. One car, fewer restaurants, lower computer costs, lower housing costs, etc, I believe it all adds up.
If we're really wanting more money, we can always look into ways to add to our income without being in high stress corporate jobs. Plus, I figure if it's a choice between buying that new computer (and finding a job to pay for it), or just sticking with my slow older one, it'd be an easy choice