From the ThinkVitamin blog:
He said that they tested various phrases on the Highrise homepage for the call-to-action button. They originally had used various permutations of “Free Trial” and “Sign-up for Free Trial”. Then they tested the phrase:
“See Plans and Pricing”
This resulted in a 200% increase in sign-ups. That’s right. 200%.
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.
If that isn’t a case for conducting A/B Testing, then I don’t know what is.
