dtgreene: For me:
* I will not buy anything with DRM
* I will not buy anything from a store that provides its own DRM
* I will buy DRM-free games when there exists a superior DRM-encumbered version
* I will buy DRM-free games when there exists an equivalent DRM-encumbered version
Is there anyone here that is more strict than me?
Well, yes and no.
In asking the DRM question, you always end up "defining" DRM, and I'd like to skip that.
I strongly dislike copy protection mechanisms, and that encompasses a whole lot more than just DRM. When a developer shoehorns online multiplayer into his singleplayer game, that effectively acts as a copy protection mechanism. Online sharing, online swapping, achievements etc., all that ties your personal online profile in with the game you bought. So that's irksome to me even though hardly anyone would call it "DRM".
So that's where I'm definitely stricter.
Then again, I e.g. accept disc or module based DRM i.e. the DRM of certain console manufacturers that still communicate a certain possession when you buy their games. It's a clear cut, invasive form of DRM that I just plain accept from developers and publishers.
So that's where I'm definitely less strict.
A lot of it comes down to trying not to support a monopoly, and to somehow still protect your privacy when companies start to think it's all public domain, and all fair game. DRM is strictly speaking just a symptom of the problem.
If Steam gave up all forms of DRM and only offered unprotected .exe files tomorrow,
I still wouldn't buy from Steam. In fact, if they could just do that without even asking their business clients (they didn't ask their business clients about radically changing their return policy too), it would exemplify the problem. :|
dtgreene: In particular, is there anyone here who will refuse to buy any game that happens to be available on Steam, even if it is available elsewhere DRM-free?
Okay, that IS an interesting stance. But with it, you end up boycotting developers that support DRM-free games, and that at a time when some devs only just begin to re-understand that there's actually a way to distribute games that doesn't involve Valve or their loyal vassal steam key reseller Humble Inc.
Let's go for an even stricter variation: If you're indifferent to DRM in principle, but favor DRM free, but still don't wish to support the monopoly for its transformative (if not eventually inevitably destructive) influence on the PC games market, should you buy a game from Humble that comes with a separate DRM free version if you inevitably get an additional Steam key with it, even when you know for a fact that Valve will not get any money out of that deal?
Bonus question: If you hoard that Steam key and never use it, are you still somehow supporting the monopoly's reach and influence? If you give that Steam key to somebody else, are you still supporting the monopoly's reach and eventually revenue?