First off it's great to be a part of Pinside. I'm hoping to plan on building myself a pinball and arcade collection some day. I was directed to this site from some pinball collector on YouTube. I didn't realize that prices on this site were so competitive compared to other sites.
Anyway...
I need to know something. Next to the prices on the pinball ads is an acronym (OBO) and (FIRM) and I want to know is what does it translate to and what is the difference? Since I don't speak acronym, I need a translation.