This thread is relevant to my interests - my parents are in the process of cleaning out their basement and presented me with a couple thousand loose cards from the early 80's to early 90s, mostly baseball with some basketball and football mixed in. I want to sell them, in bulk, for a sub market price. Problem is, I am not sure what the market price for all the cards is.
12 year old me thought I had some good cards in there, but the pricing tools available online didn't tell me much when I looked. Everything from $15 to $0.50 for a Lou Whitaker card that happened to be the first one I looked up (its in great condition). It's probably a waste of time to try and price even the good ones. And I have long since forgotten about all the details on condition and rarity.
Has anyone done something similar?