I wanted to post this in a more appropriate place but I don't have the forum cred to do it yet.  Admin feel free to validate me and move it where it should go.
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I should have probably done the proper math before ordering the miner.  But instead I did some quick calculator math and thought that I'd be able to mine a reasonable amount of coins with a 50GHs Butterfly Labs box.  So I placed my order.  THEN I did the full math.  Wow what a difference.

I just started a blog this week where me and a buddy or two will post our mining experiences.  I posted my first round of math there and all the info that backs up my conclusion.  Please check it out and give me your feedback here.

http://mineshaft.me/2013/04/initial-roi-estimates/

Thanks!  Looking forward to the discussion.