Here's an article from New York Times that caught my attention, The Best Book Reviews Money Can Buy.
Wow. The guy was making $28,000 a month!
Imagine how many artbooks you can buy with that kind of money. I must be doing something wrong.
Then I finished the article and realized it didn't end happily ever after.
Stuff like this that gives reviewers a bad name. It also makes people suspicious of not just the reviews but the motives of the reviewer.
It's not uncommon to see authors looking for reviewers on the Amazon reviewers forums. Sometimes they would offer to pay money. I'm glad to say that I've not been given such offers, and I'll not be entertaining such offers — I won't be earning $28,000 monthly anytime soon.
Getting paid to write a favorable review is no different from lying. Getting paid to hurt your own integrity is just not good business in the long run.
If you're an author, never pay for a book review. It can ruin your reputation.
Check out the comments at the bottom of that NYT article page. They are really interesting.