National Geographic doesn't raise their prices as the trips fill. The posted price is the price paid regardless of when you book.
One of the deciding factors for us with choosing to do South East Asia with National Geographic instead of
Adventures by Disney is trip timing. All the National Geographic trips go between October and March, their "dry" season. All of the ABD trips but 2 go during monsoon season in South East Asia. Monsoon season runs April to September, when 95% of the ABD trips run. Here's a breakdown of how much rain 3 of the main locations that the trip goes to gets during monsoon season.
June
Ho Chi Minh - 12 inches of rain
Hanoi - 9.6 inches of rain
Siem Reap - 6.8 inches of rain
July
Ho Chi Minh - 11.6 inches of rain
Hanoi - 8 inches of rain
Siem Reap - 11.6 inches of rain
August
Ho Chi Minh - 10.8 inches of rain
Hanoi - 11.84 inches of rain
Siem Reap - 8 inches of rain
Whereas the rain amounts for February when we are going are as follows:
February
Ho Chi Minh - 0 inches of rain
Hanoi - 1.12 inches of rain
Siem Reap - 0.4 inches of rain
And for all of you who are interested in having me do a trip report, I will try to get one done when I get back. I'm working on creating a travel blog that will have the report in it. I will post a link to it when it's up.
For those of you who are interested in the trip, feel free to join us on the Feb 4, 2017 departure. We'd love to have you join us!