I am very disappointed to hear about the DRM change from DAO to DA2. I will likely not purchase the game because of the DRM.
Supporting this DRM system is short-sighted. I do not want to pay $60 for a few years of access to a game, and only if I have Internet on the PC. My family still enjoys playing the original Diablo. I can and still enjoy playing console titles over the past 25 years, and sharing them with my children and grandchildren (Nintendo, SNES, etc). Taken to the extreme: I can play boardgames my grandfather purchased 70 years ago. I can potentially share DAO with someone or replay it myself 20 years from now, long after EA and Bioware are a distant memory. That is my expected right for the purchase.
What is next, when you buy a music CD at the store, you must authenticate and activate each car, computer, stereo, phone, mp3 player, etc before you can play it? How many people enjoy playing records that are 50 years old? Sorry, can't listen to that any more, the authentication server is long gone. Got a nice old book in print? Once they are all ebooks, you better hope it doesn't authenticate before you can open to the first page, or you won't be able to read any of it. Or sell it. Or give it away.
These are fundamental problems with this method of DRM:
No longevity. No transfer of ownership.
There are numerous other problems with it, such as inconvenience, privacy, etc. Do you not realize EA will have the date / time / IP address of each CD key authenticated, and that can be used to identify down to the city level easily, and in court can identify an individual (through ISP records). What we are witnessing is a slippery slope of more and more invasive controls on our consumption of our purchases, over time.
Meanwhile, the pirates have all the movies, music, books, and games they want, at their fingertips. The day of release, usually.
I will continue to enjoy my offline, legal experience of DAO, for many decades if I would like. And I can resell it, or pass it on to my family.
I will leave you with this simple analogy:
If I buy a deck of playing cards, I should be able to loan them, sell them, use them right away, use them anywhere, etc. You would still make plenty of money if you followed this model with the video games you sell, EA.
With the way you have currently chosen, you will make at least one less sale. Mine.