What makes a customer purchase without a thought? Comfort and ease.

When a customer knows an order will delivered quickly, at a reasonable price with one touch of a button...."thoughtless commerce" takes place. That is what I believe Amazon had in mind with Amazon Dash buttons:

There are now over 100+ brands utilizing Dash buttons via Amazon. What makes a customer purchase without a thought? Comfort and ease. When a customer knows an order will delivered quickly, at a reasonable price with one touch of a button...."thoughtless commerce" takes place.