It's very important to (honestly) record your collection for the reasons outlined above. Price paid, catalogue values and likely market values are all useful info for inheritors who may or may not want to retain the collection. As long as you keep them informed of what you have and also the reasons for it, they will be better prepared for a situation they would rather do without. If the kids are interested- good. Educate them as much as you can as it is in their interests to be fully informed. I do my best to keep the wife and kids informed about the latest acquisition, even if I know it might result in some ear-ache. The last thing I want them to do is find a collection which means nothing, otherwise there would be a good chance they would look at the two 1923 shillings for example and decide the silver one, being bullion, is 'obviously worth more' than the nickel one. Not a good starting point. Every coin in the collection has a file with all the relevant points including notes relating to conditional or absolute rarity (e.g. second best of seven recorded examples, or unique, as appropriate). Provenances are also listed along with images of the coin and any tickets that accompany it. At the moment, if I pop my clogs, there would not be any immediate plan to dispose of the collection, which is good as it means they could sit down and approach it rationally rather than tidying up the loose ends as quickly as possible. Having said that, things could always change.