When I put together the last progress update I forgot I had to buy my own ISBNs. I bought the block of 10 from Bowker which set me back $250, dramatically increasing my costs thus far. That climb from Level 8 to Level 5 just got a lot steeper.
Ah well. I guess the fair way to consider this is that each new book only has to earn $25 to break even. Plus another dollar for its share of the website costs. So I need to earn $26 dollars. Exactly the same as where I was before!
Onward and upward!