As you already know there are the few bigger US meets.

We have quite a few meets in the UK (both organised rallies and casual get togethers / ride outs).

I suppose the main problem is there are those that do and those are happy for others to do ... by that I mean of the couple of thousand members on here, there are only a few that organise the meets and it takes some organising / cost.
Ok, people put their hands in their pockets for the shirts and patches but there are other costs behind it.

As long as some are prepared to occassionaly turn because others go out of their way to organise stuff, there will be few meets.
When more people bother to organise things, there will be more meets which isn't pressure on the same few .......