That's kind of my point though, Michael; allowing the use of digital content at conventions should hardly be considered discrimination, as it's not like anyone is treating such players "unjustly" or with "prejudice". If anything, allowing digital content to be used at conventions 30 days after release adds incentive for players to pick up the digital material, to my mind, but it does not in any way, shape, or form discriminate against players who chooses not do to so.
Players would still be entirely free to wait for the content to be released in physical format, and I don't think anyone is suggesting that someone who didn't have access to the digital content wouldn't be allowed to play in a game. In my opinion, the latter case would certainly be discrimination; there's a big difference between allowing people who to use content they have "early" access to because they bought the digital version of said content, and barring someone from a game because they chose note to.
Finally, I think it's important to recognize that even though the 30 day policy is in place, players still aren't required to buy the physical copies of new content to play at a convention. I could take the first character I created using just the core SR5 rules to a convention a year from now and still expect to have a good time, despite not having used any of the new books. Am I being discriminated against? Not at all. Am I perhaps at a disadvantage from an optimization standpoint, having missed out on some cool new rules and gear; quite probably. Is that my choice? Abso-fraggin'-lutely.
I'll be honest; I don't play at conventions. The only reason I'm even posting here is because I feel like the decision to implement the "content allowed 30 days after physical release" is based on an unfair premise in and of itself, and because I disagree with the justification for it. I have no stake in the matter, except hoping that CGL can broaden their audience and sell more digital AND physical books (because that means they'll make more), and I firmly believe that introducing their content to as many people as possible as early as possible is the best way to go about this.
To my mind, physical vs digital doesn't matter. The content is out there; it is up to players to decide if they want to spend their hard earned cash on the product, and using it at conventions should be similarly optional as soon as possible, in my not so humble opinion.
[/rant]