Someone from our club bought a black pine from ebay, the seller had really talked the tree up. The photo was "not the one that you will receive, but yours can look like this soon". It was supposed to be a really good tree, but the price was EXTREMELY low. I think it was called a "sumo", or that was implied. If the tree was as the seller had stated, they would have been losing money big time.
When the "tree" came, it was just a seedling, with a little wisp of root. It died almost immediately. When the buyer wanted some satisfaction, the seller threatened that if she gave them negative feedback they would really go after her with negative feedback as well. So she gave them neutral, I think.

She brought the dead tree to a meeting and showed us. It was terrible, weak and thin and spindly. However, the moral of the story is that if the price is way too low, beware. Even with good feedback, a seller (if they are one of the very, very few unscrupulous people) may be setting you up for a fall.
She should have turned them in. But it takes guts to go to ebay and complain, and she didn't have the fight in her.
Joanie