The thing is...
This isn't the Victory as built, or as at Trafalgar, or anything like it.
She was made out of perishable materials over 250 years ago, and what we have today is a collection of parts (some original, many not) with continual bracing and support to recreate the idea of the Victory. She requires constant, regular, expensive maintenance, as any wooden boat does, and as the years pass, there'll be less and less of the original structure, whatever techniques are used to preserve her.
The question has to boil down to "what are we preserving her for"?
If the answer was "to recall our rich sailing heritage during the Napoleonic Era" then I personally would get more out of seeing a dockyard with recreated 74s, 3-deckers and a frigate or two in it; made using traditional techniques, using authentic materials, and with the knowledge that these vessels might have a lifetime of fifty to a hundred years, with care, and then be replaced by new generations trained in these skills. I don't personally need The Victory <tm> soaked in aspic for the next few hundred years, just because she's an artifact.
Andy