What you decide to archive is really a matter of judgement based on how the recordings were made and what you feel the recordees would feel about the use you intend to put them to.
Personally, if the people on the recordings had no objection in the first place, I have never understood why family members should have any say in the matter beyond being offered the courtesy of being informed what is to happen to them. There again, in thirty odd years of collecting we have never met with any objections from family members.
In the extremely unlikely event of money being involved, we have always donated earnings into the setting up and running costs of archives.
Jim Carroll