Your deep niche expertise is exactly why your site is hard to sell. It dies with you.

Your deep niche expertise is exactly why your site is hard to sell. It dies with you.
If the content only works because YOU know the surgical-grade titanium fastener market intimately, the buyer is purchasing a job they can't do. Key-person risk caps your multiple harder than any traffic concern.
— Documented systems sell; founder-genius doesn't transfer
— Outsourced, repeatable content = a buyer can operate it
— "Only I can write this" is a confession, not a moat
The most sellable site is the one a stranger can run by Tuesday. Tell me your asset survives without you.