Ask HN: Why does my company need to enable IPv6?

We run an ecommerce shop with a large majority of our customers in the US. We currently are IPv4 only but we have CloudFlare proxying our content. Our origin servers only support IPv4 but that is what the CloudFlare "Pseudo IPv4" setting is for.

What benefits could I give to management for why we should click the "IPv6 Compatibility" button. A lack of downside isn't good enough, I need upside.