You will get 1 TB of free Google storage for 2 years if you buy a Chromebook before January 31, 2015. You can buy a cheap Chromebook like Acer Chromebook 11 for $199, where as you have to spend $240 for 1 TB of Google storage for 2 years.
Until now, Google only offered 1 TB of storage for Chromebook Pixel users which costs $1299.