Expert Card Technique is a followup to Royal Road to Card Magic. You aren't taught the classic pass there because it was taught in Royal Road. The dvd set R. Paul Wilson on The Royal Road to Card Magic is a great resource that teaches the classic pass along with many other fundamentals and a number of good effects. The book is actually a little deficient in this area, unfortunately. But at only $10, it's not a bad investment.
Actually, considering the many hours of practicing that you will need with the classic pass, I think it's a horrible investment to learn the class pass from. Its description of the classic pass is more than just "a little deficient." It's absolutely atrocious in my opinion.
It's very important to start out with an excellent description of the classic pass from the very beginning, or you will have dozens of hours of practicing (or more) to re-train the bad habits that you picked up from practicing it poorly. So yes, by all means, Card College 2 or Pass With Care are great investments.
In card magic, as in most other things, you often get what you pay for. Royal Road is an excellent resource for easy-to-perform effects, but not for gaining your fundamental technique, if you are serious about card magic that is.
The fact remains that most of today's top magicians learned the basics from Royal Road and highly recommend it. If you want to learn from the book that people like Daryl and R. Paul Wilson learned the basics from, that's Royal Road to Card Magic. Most magicians consider it a must have in any card magician's library.
Yes, Card College is far superior. But it may or may not be a better investment, depending on what your needs and goals are. A nail gun is far superior to a hammer, but for most of us, a hammer is a much better investment.
In any case, I didn't add that to the list to start a debate on the topic. I added it to the list to provide another alternative. Besides, my primary addition to the list was the dvd set, not the book.