I, too, have found old18th and 19th century Bibles, copied the title page and the family data section, then made a dozen or more copies on archival paper. Those I send to DAR, SAR, NGS, NEHGS, and other genealogical organizations (including those organizations in the area where the family lived when I can find that info), as well as family name associations.
It is so sad to find these old Bibles (and shoe boxes of old photos, too) in flea markets and local auctions, knowing that there are descendants around the country who would love to have copies of them.
The more I can spread them around the more likely descendants will find them; then maybe they will go viral among folks in that family tree.
EuGene