I just got off the phone with VISA. I have a card with a $30 000 credit limit and a "low-interest" rate of 12%, with an annual fee of $29. I had them switch it to a no-fee, 1% cash-back card with warranty extension and a $5000 credit limit.
I am just not comfortable with so much open credit now that my balance is on its way to $5000, but at the same time I was not yet ready to close out the account entirely, which was my intention. I realize that it's useful to have a VISA card for the locations that do not accept MC - like the eye doctor I visited last summer.
Eventually I will be credit card free, but not yet.