In the "running out of oil" thread Chuck made a point that raises an interesting marketing possibility.
He stated that there is still 200 year-old oak available, just not in large enough quantities for widespread use. Now that single-barrel bottlings are part of almost every distiller's product line, perhaps it would be possible to add information about the provenance of the barrel to the identity of the product.
If there's enough very old oak to make a hundred or so barrels, then a special bottling might be practical -- something akin to a one-time release within BTAC or Parker's Heritage Collection.
Such a bottling would bear a hefty price tag, but it would offer something unique and potentially very tasty in return.