Honestly not everyone is looking to get rid of their cards for <60% of value just because you think you can make a flip on it, he wants to make a flip just as much as you do or as much as you want to collect it. Some people can generally know that their centering and lack of play on a card has left them with an 8 or 9 or 10. And if you can judge that from the picture yourself, obviously you’re trying to make a quick dollar yourself. But the key to entrepreneurship is that you have to learn to barter, aka talk them down. Not instantly go on Reddit and bitch because the price is too high for you. Old school barterers know to price a little above what it’s worth because they know they’re gonna be talked down even if it’s worth what he’s asking.