How? It means I have a reasonable idea of the complexity involved. Sure, "too much" is a subjective term, but .. look around, there really aren't all that many people doing it any more, just like everyone bemoans the movement of blogs to social media.

I still have the domain, because it's also too much hassle to change an email address which you've used in a lot of places, it's just delegated to a small ISP to run the actual MTA.