This way of thinking is the exact opposite of what we need to do in the IT for reducing our impact on the environment. 4 GB is an enormous amount of data. It's enough to listen to 21k hours of music, or having a small dump of all french wikipedia (no pics, main paragraph). It's enough to completely travel off-line in Germany. It's enough to watch 3 to 4 movies in a good resolution. And that's per day.

We must absolutely reduce our resource usage.