Curtis73 (Forum Supporter) said:
Example B: I was given a wood-strip canoe. (I don't mean spam... I mean an actual floating boat). It was after an auction I went to and some stuff that didn't sell the son was just giving away. I put it on ebay and got $850 for it after a ton of trouble. Neither of us knew it was valuable at the time, I didn't convince him to give it to me, he just made a poor decision.
That's a tough one.
With friends, I might say "hey, if you sell this and make money on it, I'd like some of the proceeds." I'd never do that with a stranger, though. Admittedly, however, my friends and I all know that if given something under the auspices of "its yours I don't care what you do with it" that the receiving friend will immediately determine the value of the gift.
I will however be up front with all gift-givers, "if you give this to me, there is a good chance I might resell it."
I acquired an old early full-suspension Cannondale with some interesting, somewhat historical bits on it. When I saw my neighbor was putting it on the a "trash trailer", I asked him about it. He said "I'm sure its worth something to somene but I don't really have the time to find that person." So I asked him if I could have it, telling him that'd find a buyer. He said "sure, and you can keep the profits. I'll be happy if its stays out there in the world."
I made $300 on that bike and is now in Cannondale collection in France.
Then:
I had a co-worker with an old California made MTB (Mountain Cycle). He asked "I'm curious what you think of it? What it might be worth?" I told him "Oh I dunno, could be worthless, could be valuable. I do research on anything that comes into my possession." - He then asked "do you think you could look into it, I might want to sell it."
I replied, "Eh, value is really dependent on how far and wide you broadcast the ad, on which groups/forums, quality of pictures, history of the bike, etc. So I can't really determine the price without having it in my hands - but I'd totally sell it on consignment for you! Let me know if you want to give it away or sell it cheap."
It was a strange mix of "tell me how much this is worth, then buy it from me for market value."
I only do appraisals when I really don't want something.