I'd say that people would definitely prioritize reliability. That is something that I've personally noticed. I've spoken to other people about this, and they've noticed that over the past few years, they have seen a rise in lost or broken packages, which usually has to come out of a business person's pocket. I would say reliability. As long as you can count on it getting there, then one to two days extra is....
On October 5th, 2016. See this statement in context.