And that's fine, if your game is buying and selling.
My game is making money with machinery and trucks. I need machinery and trucks to do that, and I need to buy machinery and trucks for the right prices. I don't have time to be screwing around trying to forensically examine a bunch of sh!tty photos that are taken at just the right angles and in just the right light to make something look as good as it can, or better than it is. Also, a fair price for something is what two people agree on, not slightly lower than the average of the 5 highest prices you can find something listed at.
When I stumble across your item, I have no idea if you are asking $10k hoping to get $7k, or asking $10k for something that's really worth $8k, but you think it's actually worth $12k.
And I have no way to really know until I come and examine it with my own eyes.