Travelers that book online don't realize that most sites and booking engines that they are working with are actually a travel agency. Unfortunately, they aren't getting the benefit of developing a one-on-one relationship with a travel expert that is here to customize all of the details, assist you 24/7 in case of unexpected events, and do extensive research for you.
Think of a great travel advisor like your doctor, hair dresser, or accountant that you've built a great rapport with over the years. Great bedside manner, trust in the services that you are getting, and building relationships with experts who work in their field every day is important. You could certainly diagnosis yourself on WebMd, cut your hair by watching a youtube video, or invest your money yourself, but should you?