I go on a case by case basis or rather a lot by lot basis. Also the overall condition has to be a minimum of pretty decent for their era. I've bought some great lots for a super "steal" and I have bought some awful lots for way more than I should have.
I collect: Baseball, Football, Hockey, Mostly Vintage pre1980, My Homie teams - Washington/Baltimore Teams Senators (Twins, Rangers), Expos/Nationals, Redskins, Capitals, Bullets/Wizards - HOFers - Non-sport (mostly TV shows and movies).
My Trade List is very much a work in progress
CaptKirk42s Trading Card Blog Curly W Cards Strive For '65 YouTube klandersen42