It's difficult to say and as stated above -and I do agree with that the majority fail and doesn't achieve the "autoblogs dream", I saw some few good stories here but that doesn't mean every buddy and his mother are getting the same success, it depends to every one's knowledge and the way things are done . Ok since we're talking numbers here, I still have a number of my old autoblogs, 2-4 years old, from their first month till now the average earning for each one of them each day is from $10 to $20 from G..A only ! believe it or not, I do only check them once every 6 months or so, other than cleaning spam comments from db I do nothing for them so no promotion or any thing else, hell some of them are even still with WP 2.2 version, I'm too lazy and and busy to look at them lol. So yeah you got this too, the older your autoblogs get, the more love they get from the big G .. . Let me end with this, autoblogs or the whole niche marketing way is not some thing hard but in the same time is not as easy as it sounds to many people and what the dream sellers "gurus" make you believe. So Before you start any thing not only autobogging, don't just jump to the thing right a way, learn first how to do things right, and lesson & learn from others's mistakes, with time, hard work and some patience .. you'll end up doing it sooner or later .