No, and I don't see why you are asking that
I use my own domain and redirect it to the blog with the GoDaddy's forwarding tool. Really easy and fast.
Cost me a big 0$ of hosting.
I love this method. The only down side I see is that google has more control over shutting down the site. But if you have lots out there, could be worth the risk.
Hey math!
Nice thread.
You said that we should check for 10000-50000 monthly search KWs.
My silly question is that is it the "exact" search count or broad???
PS: What about competition? How many exact matched results should be there on G?
Good times!