ReynardFox: GOG's true core principle has always been DRM free and the importance of this goes way beyond any one person's personal preferences.
Let's take a look at GOG FAQ from November 2012 (I just picked a random date):
http://web.archive.org/web/20121120094954/http://www.gog.com/support/website_help/website_and_accounts "2. What is GOG.com about and what are its features?
GOG.com is the new games-on-demand platform serving fantastic computer games at kick-ass prices. And no, it's not “just a store” - it's the site that's all about the greatest games ever and the people who play them. We've got critically acclaimed games for just $5.99 and $9.99, tons of free downloadable content and exclusive add-ons, no DRMs or intrusive copy protection and full compatibility with Windows XP & Vista. Most of our games are compatible with Windows 7 as well, and many work natively on Mac OS X 10.6 and above - it's all right there on every product page. And that's only the tip of the iceberg, as you may have noticed on our cool new splash screen on the main page.
3. Is GOG.com available in [enter-country-here]?
GOG.com available to everyone, everywhere and at any time (well “any time” minus any scheduled maintenance ;).
4. Do I need a user account?
A lot of nice functionality is available to registered users as well as guests. Without an account you can rate games, add comments and even post on the forums. So what's the point of creating a user account? First and foremost to purchase and download games: because your purchased games are linked with your account, you can re-download them whenever and wherever you need. You'll also have more privileges on the forums (creating topics, rating posts), access to our after-sales support, the option to post your reviews on the website and much, much more (and one more “much” for the things that are yet to come:).
5. So what's with this DRM thing?
DRM or Digital Rights Management is a kind of copy protection technology used by many companies to limit the usage of digital media. Although designed to stop pirates from creating illegal copies, in reality the only people who are hurt are the legitimate consumers, stripped of their fair use rights, such as the ability to make backup copies. We believe that a DRM-free world would be a better place and that's why you won't find any DRMs or other intrusive copy protection in games available at GOG.com."
DRM-free is point 5 in their FAQ while worldwide availability is point 3. DRM-free is also shortly mentioned in point 2, but only after quality of games, cheap prices and free downloadable contant and side by side with compatibility with Windows XP & Vista & Windows 7.
That doesn't really back up your claim that DRM-free has always been their true core principle. It was one among some others, but not the most important or the only one.