The pricing on that page is for a different market research product that gets a representative sample of users across the internet. For the website satisfaction product, there is a free 4 question monthly recurring survey that is set up automatically. Custom surveys are $0.01/response.

Different products. Qualaroo pops surveys on your own website. Google's product pops surveys on other companies' websites, who are paid for the privilege. Useful if you have small traffic or are seeking answers from an audience diff from your own.