So guys, what kept your potential customers from signing up?
 

Hello,

I mean what was their concern? What were their "questions" before signing up? What doubts did they have, if any?

Well, i guess it's better to ask those customers then;)

Indeed, but I thought you got some comments from your customers about improving something...

well its always hard to know what kept them. can be many reasons. never a clear one. Well as long as your tour doesn't has leaks and broken links.

i think it`s all about quality and difference

^^ I agree.

Differentiate yourself from the rest! Plus, developing rapport from the start and making them feel like an individual and not just a number will work in your favor.