IMO the biggest mistake people make in this hobby is to focus on
and collect only one type of pin. Based on the chatter here, often NIB
Sterns. There were decades of really good and very unique pins made
and exploring them is a big part of the fun.
Congrats on discovering the joys of EM's. LOTS to choose from!
My personal faves here are ' Aztec, Fireball, Capt Fantastic and
just about any Gottleib made in the 1950's and '60's.