I think it is dangerous to differentiate yourselves with this pricing model alone. You plant an immediate doubt as to whether or not the service is even going t

I think it is dangerous to differentiate yourselves with this pricing model alone. You plant an immediate doubt as to whether or not the service is even going to work. Financial advisors, for example, would be very afraid of advertising "pay for performance" -- and it's not because of the SEC. It's because commission sales lead to suspicion and dissatisfaction. Sell relationships, quality, and reliability. Price is the icing.