The problem with publishing a book of reviews is it won't generate any immediate revenue. Smashwords pays one month after the end of the fiscal quarter, IIRC, so it'd be October before James received royalties from them; Amazon is monthly, but they don't make payments until two months after the end of the sales period (i.e., sales in July won't pay out until the end of September, and August until October). And that's even assuming a book of reviews would attract readers beyond people who read this blog.