unfinished hurts resale
I agree with the majority here that Cetol is good stuff--lasts well, and has its own orangey color that has come to be viewed as the traditional color for finished wood on yachts.I've found Epifanes Rubbed Effect Varnish to be a beautiful product for interior finishes if you don't want gloss (just don't use their own Woodfinish Gloss as the base coat on unfinished wood as they suggest; too many air bubbles and sanding).If you want something that is genuinely permanent, try POR-15 clear or its wood formula, Pellucid. These 2 epoxies will permanently encapsulate the wood and require no further touch-ups except for deep abrasions. The effect will be darker wood with a gloss finish and no grain standing out. Leaving your wood unfinished is an aesthetical choice, but you should understand it will hurt resale. Unfinished wood has a shorter life, flaws in the wood are destroyed more easily by water/ice/mold penetration, and buyers will be worried about how difficult it will be to replace wood trim that wasn't intended to be replaced. I automatically passed up several boats with that "lovely silver" look while boat-shopping last year and I'm sure that is the common view.