Is the travel market that great that allows so many sites that do the same thing? The deals are never that great, most of the time you can book it yourself for less direct through the hotel or airline, especially on international trips.
Just a pet peeve... lol
Or why watch TV when all content is available online ad less?
Funny thing is, those trip agencies don't have access to ALL routes and pricing, regardless of their claims. Depending on country, you can book flights from an airline that never shows in their system, for whatever reason. But you'd need to learn their names and find their web page on your own, especially on smaller or blacklisted countries...
Did you know, that no American airline is allowed to come to my country anymore? There is a bunch of smaller local 1~3 plane airlines that only go to neighbor countries to connect flight anyone intending to come and leave. You gotta love the thrill of flying those old planes... (don't mind that noise, it gets temperamental sometimes).