Not true. There are many a2kers who have met in San Francisco, Austin, Albuquerque, Houston, Chicago, New York, Boston, London, and Lippstadt.
I even met a a2ker on my last visit to Moscow. We spent the whole day together.
Last year in November, when I did a Elbe River cruise that ended in Hamburg, a2k friends from Manchester and Lippstadt joined me to spend three days together.
As a matter of fact, some of us are meeting in Austin and Houston early next month. Come if you can.
We talk about almost every subject under the sun - and the ones I participated in have always been enjoyable events.