I haven't looked at it, but they were laying on the table and I bought one of each type. Aren't these the same card keys that I would have received at hotel check-in if I had arrived a day later (Thursday)?

That was the point of my post, as it seemed that member who arrived the day before the convention started could only get one of these cards by buying it at the Club table.

Also, hotel visitors who arrived the day before the convention would not have the reminder in their hand each time they opened their door since they were too late to get them at check-in.