When I attempt to make a purchase at almost all websites I am forced to "register" with an e-dress and password, just so I am allowed to spend money!
When I go into a Wal-Mart, for example, my password is my cash! I am not required to register in order to spend that cash.
So should it be at websites. Just sell me the *(^&?!@ merchandise. Take my name and credit card information and address and sell me the stuff.
There's no good reason for the company to record any of my information:
My shipping address isn't always the same, so I'd have to change the saved information in any case.
I ignore most incoming e-mail, so that's not a good reason to save my information for later use.
It's an intrusion "privacy" policies notwithstanding.