Is it complete or will there continue to be additions that this version will not have?
I presume it will grow for the next couple years. Free updated versions.
Most of them are already available to members here: www.nachi.org/gallery
The disk is honestly just a way to pay for the convenience of having them as your own library.
Nick is there anyway to just keep a credit card on file for order this stuff? So that I can just hit a couple of buttons and get it?
There’s a lot more security issues involved with stuff like that. Visa is starting to charge merchant who store data thousands of dollars. Best to just avoid it!
InterNACHI destroys all credit card info within moments after processing. So does www.InspectorOutlet.com
Our processing rates are low because we have had almost no chargebacks in our history.
Nice to know were in a safe place here.
Just ordered! $48.00 with shipping! 
Randy