>If someone made a tool that was better than planning your trip in your head it doesn't matter that you aren't taking a trip all the time. Because most people are always planning their next trip in their mind.

My wife uses Travelocity's "book a random room" feature. You are told "random 4 star hotel in X area for $x" that is typically $10-20 less than if you use Travelocity to book that same hotel directly. She loves it because she gets really excited about saving a couple of bucks. I get anxious because I don't know what I'm getting.