CognacParadis.com talks about how mixologists are regaining interests for cognac because of its old world appeal and historical significance in the bar tending industry. It was once upon a time a key ingredient used by bartenders.
This trend is wide spreading within the brandy category which includes other products such as Armagnac or Calvados, etc.
Although cognacs are less affordable, they are still favored by high-end bars in large metropolitan areas.
Source: CognacParadis.com