While that's probably true for the most part, as long as airlines exist that hopelessly suck at doing their own distribution (or even working with OTAs), some sort of market for those guys will presumably remain. For example, if I were to find a ticket I wanted on CI or BR from the US to Asia, I would seek out a bucket shop to book it for me, regardless of how much of a discount they are able to pass on because then I wouldn't need to deal with crappy websites or calling unattended customer service phone numbers. Such agents can also be useful for RTW fares (I haven't booked one of those in a while, but I never had the patience to try to piece compliant itineraries together on my own).