Launching a nonfiction book soon -- pay for reviews?

[oldtime dfl_er]

1. I paid

I joined pubby and paid about $25 a month. It's a reciprocity thing, where you read other peoples' books and review them, and they do the same for you. It;s hit and miss, a lot of people don't actually read the book, but review based on the little they glean from your cover, or other reviews. I did get a few sales, and I did get some good positive criticism and critiques, so I would say it was worth it but just barely.