I have a half dozen blogs for different things, my favorite is this one where I post my crazy ideas so I stop myself from actually implementing them and can come back to them later if I still like the idea a week/month later http://ideasfrommydreams.blogspot.com/
In the six years I have had it there has been a total of 3301 page views and maybe five comments and I am ok with that because that isn't where it provides me with value. If comments or page views mattered I would have abandoned this blog years ago.