I collect nothing in particular, other than items that grab my attention.....STL Cardinals items and Apollo era NASA items primarily! I have acquired 2 large collections in my 31 years of collecting, the first was movie stars and musicians, which I started in 1992 when I was 11, and I sold in about 2009. The second was baseball and football which went in about 2018 and have ebbed and flowed with my custom ***** Leagues and Hall of Fame items with baseball and football sprinkled in in the past 4 years, and have sold most of, other than special items, gifts from friends, etc.
The moral of the story is collect what you enjoy you're not collecting for anyone else's opinion just go for what you enjoy and enjoy!!