[ta1243]

So I invest all that time deciding where, when and how to travel and don't press refresh when I see an error which is more than likely on my end?

[ricardobeat]

An error page can be enough for a handful of customers to decide to “come back later” or go with a competitor website.

If you think about experiments with button colors and other nearly imperceptible adjustments, that we know can affect conversion rates, an error page is orders of magnitude more impactful.