These technology advancements in this space facilitate an easier way to cross-sell to partner airlines and via travel agents, eliminating the dependency on a dedicated global GDS federating between systems. Also, multiple price comparison websites eliminate the need of dedicated GDS for point-in-time prices and inventory for both travel agents and end-customers. Hence some experts argue that these changes in business models may lead to complete phasing out of GDS in the Airline space by the year 2020.[4] On the other hand, some travel professional experts demonstrate that GDS still continue to offer the flexibility and bulk buying capacities for airline consolidators to reach travel agents that individual airline systems are not able to provide customer segments with wider choices.[5] Their argument is, individual airline distribution systems are not designed to interoperate with competitors systems.