"He believes it’s because people are afraid if they click a link that says “Free Trial” then they’ll somehow automatically signup for something and be trapped. However, “See Plans and Pricing” encouraged them to explore, without the fear of commitment."
— Carsonified » How to Increase Sign-ups by 200% : Clicking a link is a commitment of sorts, like deciding to talk to a sales representative at a store or putting an item in your shopping cart. The customer has to feel comfortable throughout the purchasing process, and part of that comfort comes from the ability to back out at any time.