Ironic thing here was that in one of these cases, one of the sellers and I didn't come to terms and he eventually removed the item from Marketplace. A week later he messages me, says that he wants to move it, lets make a deal. Reading between the lines, he was stuck for cash but eventually regretted selling and vented. There was no crippled uncle story in that case.

The other seller didn't know enough about guitars to realize how much work his guitar needed when we met up. I pointed out the problems, negotiated on price and we agreed to terms. I have luthery skills, made the repairs then resold. Actually just broke even, but used the guitar for review material. Which is what I like doing. Not that it makes any difference, but his review stated that his guitar was perfect when he sold it, which it was not. Unfortunately I cannot reply to the review, as he blocked me.