if you have a good niche you don't need auto-blogs. if you go to a micro-niche like (how-to-heal-zip-behind-your-ear-on-sunny-days ) you need good, readable, unique content, on and off page seo and the clicks will come because it's targeted. Less traffic but better quality.

But, if you just for a wide niche like "heal zips" then you will need more content, more traffic movement to get some clicks. And nobody likes to write about zips so it's easier to get auto-content... less quality but still helps to get traffic.

Now, going ON Topic:
it's not easy starting from 0 to 100 on adsense, because it's ppc. Unless it's fakes clicks and you get caught sooner or later, first you need traffic and then you need people to click the ads.

do not aim to 100 autoblogs, start with one, with manual content and until you get the method. Then upgrade it!

but that's just my 2 cents...