But I have to send the same sort of information (albeit shorter) via email on a regular basis.
A lot of alerts, reporting, quotes, code snippets, short documentation or step by step instructions, etc.
I don't just send emails to say "Hey, let's meet at 5". You know the memes with "this could have been an email", it usually is this case.
Just to be clear, most of those rich emails are the automatic/transactional emails.