I have never "sold" any used RV accessory, and we've accumulated a LOT of stuff over the years. The biggest noticeable accumulation is when we purchase a new camper and discard unused items. It has been our practice to bring along an item or two with us camping, and then I scour the campground and find some else camping there, if that be tent or RV, and try to determine if they could benefit from my item. If I think they could, I approach them and simply give it to them as a gift. I've had many, many tent campers almost break down and cry, giving them unneeded sleeping bags, tarps, the little 1 pound propane canisters, cooking utensils, even all of our cast iron skillets we no longer use.
We've given away 2 different RV covers, all our old Coleman camp stove equipment, and ALL our DishTV satallite equipment, including tripod, Tailgater, wire, receiver, everything.
The list goes on and on. But nothing we needed or wanted any longer. So why not share with some who can benefit! The good Lord blessed and provided for us, it's OK to share the blessing on to someone else.
Maybe I'm different, but for us, we've gotten our money's worth from the item. It's served it's usefulness and I'm completely satisfied. I have no desire to haggle trying to get a few bucks out of something. When I want to get rid of something, I just get rid of it. And camping folks, especially folks who are new to the experience, are overwhelmed and sometimes so speechless at some of the simplest "gifts" given to them.
It goes without saying, our house hold items we no longer need or want or use, all go to GoodWill. I imagine, we've giving away many thousands of dollars of "stuff" and each item given was given with thought and love.
That's something money can never provide.
My suggestion, just give it to someone needy the next time you go camping.