@jonathan-rost,
we play Global 40 as well, and a pretty consistently revolving basis- essentially as soon as a game ends we begin a new game shortly afterwards. We are in the DFW area and if you are truly interested in making the trek.
About 6 years. I got my brother classic when I was around 12 (until then we did the computer version). When Revised came out I was captivated. I’ve played a lot of AARe (I even played it back when it was 2.0 and I think earlier.) I got AA50 and played it a few times but recently sold it. I recently got AA42 (about the same time as I sold AA50). I have only played a couple AA42 games mainly because I couldn’t get my brother to play very often and I was busy.