I couldn't have said it better:
There are no rules to blogging except this one: always self-host your website because your URL, your own private domain, is the most valuable thing you can own. Your career will thank you for it later and no-one can take it away.
This overlaps with a lot of what I aim towards. This one thing would stop us from performing for others and allow us the space to indulge in whatever fascinates us.
And, what fascinates us makes us who we are.
(source: Take Care of Your Blog)