It certainly seems about that in my experience. Or more! But then, as Peter says, if I find a coin going cheap myself then if a fair market price is double or even 10x that and someone is happy to pay ... I don't mind dealers making a profit. None would be in business long if they didn't. But I do object to prices way beyond what things are worth! Of course, like any customer I have the option not to buy. But if it's a daft price and I want it I'll try to negotiate.... The above is fundamental to business. Any business has a known purchase cost, but an unknown selling price. You try to maximise the profit and if you can make 10x your cost price you're a happy man. Some you win, some you lose. As Richard says, nobody is compelled to buy a coin. A previous coin of mine was sold in Spink on Monday for £1K less than I sold it 5 years ago to a dealer, so somebody took a hit. I've sold things for less than I paid too. We all make 'mistakes'. Every coin is different, so that excludes the 'standard' price route - something the TPGs in the US try to manipulate with their price/slab grade policies.