As I've just passed my 20th year as a member, I get most of my benefit from being active in my Division. Desert Division is small, but we are likely the most active Division in TCA. Most of my closest friends in the hobby are in Division. As a result, TCA has transcended trains and is all about the people for me. I came into TCA as loner HO modeler and have broadened my knowledge and my interests greatly by learning what drives everyone else in this hobby.
As for the two-signature rule, I authored the motion that went before the national board as a director at the time to eliminate the two signatures and it was passed both by the national board and by the membership. I believed then as I do now that requiring two signatures was a way to keep people away from the hobby rather than expand the broad tent that it truly is.
As the Eastern Division event, York is fun. No question about it. However, it is not the reason I belong to TCA. It is simply another benefit should I choose to take advantage of it. If I lived closer, I would try and be there more often.