Why am I the only person it seems that loves email? It's like business texting. You can do it asynchronously and it's ubiquitous. Sure it has its negatives and it doesn't replace Skype/GChat or face-to-face, and we can use other apps that are better for certain cases, but I can't imagine myself taking a hard no email stance.
I love it. It is far more important to me than Facebook/Jabber/&c., all of which are problematic for a variety of reasons. Perhaps it's my age, but I've been emailing for ~25 years now, and it's unlikely that new channels will displace email for me.