UPDATE
I decided to wait about a week to let the law of averages play out and take all factors into account. I created about 40 quick one pagers using the exact same template.
All Time Stats
$39.01 Revenue (from 81 clicks)
$18.96 Expenses (from 192 clicks)
Assuming 20 dollars profit from 40 sites, each site has only earned an average of 50 cents. Some of these sites are performing well while others are underperforming (operating at a loss) and I intend to change some things around with the ones losing money.
The main struggle has been driving traffic to these websites. My max CPC on adwords is at 10cents. I've read Jon post that 6 cents should probably be your limit for arbitrage. With 40 of these arbitrage sites, some of them are getting only 1 or 2 page views each day. This is for several reasons. I am often ranked 9th or below in the ad serving and also, my keywords are quite general. Not everyone searching for my term gives a crap about my ad... actually, very few do. So, a very small number of the impressions are turning into clicks. Think small decimals. I have searchfeed and 7search, but neither of them seem to send any traffic my way.
Another issue is my choice of domain names. As recommended in an earlier thread, I used the same domain name for all 40 of these sub sites. While these sites have earned an agregate 20 dollars, I created a similar arbitrage site with a separate specific domain name not only for the industry but for the niche within that industry. The site gets many more clicks on adwords and I am up to 20 in profit from this arbitrage site alone. But, the domain also cost me much more as it is a ccTLD.
I have also split the 40 sites up into 2 designs... 20 for each. In 2 or 3 weeks I will look at which design has worked better, apply it to the other 20 and test some more. I'll also do some more detailed analysis... this is a good start, but I'd like some more data to work with because as I explained before, traffic is still slow.
In the meantime, I think I'll work on some sites that actually have content, and see if I can't test those waters. I have to say though, arbitrage comes easier because apparently ugly pages get high CTR and I'm good at making ugly pages!
Hope this was somewhat insightful/interesting and I'll update this sometime down the road when i conduct more analysis.