Good points, but:

If a creditcard won`t suffice, anything else will, Bank acount no? Social Security number? I can think of more personal info when put my mind to it.

It wont change pricing, most bulk CD burning devices use software to imprint the CDs without unique data per CD. It only would mean using a different piece of software.

And you`re right, this would only work for ordered copies.

How about this one: Curious Labs has the CDs burned with password protected, selfinstalling archive, but with a piece missing so the installer wont work. The buyer has to download a personalized installer from Curious Labs, after a registration process, which only accepts the data entered on registration and a general password given by CL. This installerrepairs` the archive during installation if the personal data is acceptable and the CL password is correct.

So, CL need not worry about their CD as the installation is corrupt without a proper repair installer (as only they know what part is missing). The general CL password is needed to connect the unique buyer to a generic archive. The buyer HAS to get a personalized installer to get the installation going.

Leaves going back to b) in my post:
The buyers need not worry about the password as no personal data is burned on the CD. They can install as much copies as they want without Curious Labs having to worry about EULA issues. What buyer would give away such password? (read installer this time)

CL is protected and the buyer will take good care of the installer.