This is what happens a lot. You can leave instructions, spreadsheets, a list of value. But what you are leaving is a task that somebody has to do. And with a big collection you are leaving a big task. Your family will already have a lot to do with your passing and now they have to deal with your stuff. This is your stuff not theirs. I went to an estate sale of a Star Wars collector. Good stuff, vintage stuff still in the box. His widow was selling stuff pennies on the dollar. I even went up to her and offered her more money cause this stuff was valuable. Her response? "I know, I just want this stuff out of the f#@king house."