Email Accounts Paid Services vs. Free Emails

I've been telling people in the past about this for such a long time and at least someone was able to write it down and confirm my belief.
This is the reason why I advise for people not to use their paid service provider like AOL, MSN or Earthlink emails.
If you ever cancel the service. Guess what? You loose the email address.
This is why it's so important to use a separate email service for your email.
To easily send mail and to be able to keep that email service regardless of how you get onto the internet.