We don't have plans right now to have a CD version.
What good would it be ? The moment it gets printed, it will be already obsolete, because we constantly update all installers, in order to have the Trial version always current with the latest fixes.
So, you will simply pay more (cost of the scenery + cost of duplication/production + cost of shipping), have to wait to get the scenery, and will have a version that will be old very shortly, requiring to download the installer anyway.
And of course, even if we did a CD version, it will have exactly the same activation system as the downloadable one. And, since the downloadable one allows to activate even without an internet connection, even the "I don't have an internet connection" argument doesn't hold.
And finally, even if you don't have a Credit Card, the online version can be purchased with PayPal as well.