I went to a bunch of APBA convention from 1981 to 1994 but I lost interest in major league baseball because the Montreal Expos were again foiled by a strike.
My interest in baseball came back eventually but only for the 1901-1994 seasons. I wish I had kept all my cards as I had the sets from 1973 - 1993 and maybe 15 older seasons. I also played lots of SoM and some PtP.