International tickets online

I found a new international flight search site called vayama and plugged in some of our frequently flown routes where I know the general cost. Well, they seem to be more expensive than the fares I pay, when I buy tkts online or offline, for most of the routes. For nearby locations, the difference is about 20% but for further destinations, the costs seems to be almost 75% higher. Their market is obviously not people like me. Will keep checking to see if their fares are dynamic or if they remain the same.