La Nouba at Downtown Disney Westside is being rumored to be having a price increase in the near future. Recently some restructuring of the seating categories was implemented, with a new 'Front and Center' category being added to the existing Category 1, 2 and 3. The information suggests that the new 'Front and Center' section may increase to around $140, along with increases for the other categories as well. This is not yet officially confirmed, and as always is subject to change.
You can book tickets at the current prices, with the new seating categories at the official La Nouba site at http://www.cirquedusoleil.com/CirqueDuSoleil/en/showstickets/lanouba/TicketsGeneral/tickets