This stuff goes on all the time. A lady asked for my help because she wanted to sell a NIB Winchester Model 12 that had been sitting in her late husband's gun safe since he had bought it many years ago.
The "dealer" told her it would be hard for him to re-sell, because "no one wants pump guns anymore" and "16 gauge ammo is too hard to find." I won't say what he offered her for it, but she was savvy enough to see she was being embarrassed.
I helped her find a home for it, on reasonable terms for both parties.
I realize that you are in business to make money, but customer service and honesty is what keeps you in business.
Kind regards,