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Why have many high-value antiquarian books continued to be sold through personal dealer relationships?

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While the internet has revolutionized the accessibility of many books, high-end antiquarian dealers have largely maintained traditional, personal relationships with their clients rather than shifting exclusively to online storefronts.1

The reliance on personal dealer relationships for high-value items—often those valued in the $100,000 range—stems from the unique nature of rare book collecting. Because the value of a book is heavily dependent on its specific condition, rarity, and desirability, collectors often require the expert guidance and trust that a long-standing relationship with a specialized dealer provides.21

Unlike mass-market transactions, the trade of rare, high-stakes items involves nuanced assessments of provenance and physical state that are difficult to convey through a standard online interface. Consequently, while the internet has opened the hobby to a wider public for more common items, the most significant antiquarian transactions continue to rely on the professional expertise and personalized service of established dealers.1