Ok, CVA "big bore", wall hanger, so it's not "New in Box".
"Un-fired" and lightly used are actually really different things.
Un-fired still has factory packing greases intact/unmolested in and on the barrel and lock internals, that's fine, but all that needs a specific cleaning regime before it's shot for the first time.
Learning to shoot it is fun too, many folks here can and will help with that, the first steps are important, but all that has an easy and short learning curve to accomplish.
If marketing is still the goal after that, the listing would be lightly used, and require proper cleaning and lubrication for that kind of presentation,, another easy but specific process that needs to be done to maintain value.
Un-fired or limited use as far as value goes is very close, but un-fired leaves no question of proper care.
More to the point? Specific value increase? Markets are very high right now, with a major spike occurring in the last two years,, yet looming recession and limited funds with individuals could change opportunities.
Any Value increase in years, with either option , is small at this point.
If you can provide Photo's of the actual piece you have, member's will will help you determine current value
I just passed on a good conditioned used one for an offered $400 at a local market,, he wanted 450,, pass,,