The problem is the value they assign based on the grade given. If this was a fair reflection of the open market value of the item then there would be less of a problem, but as this figure is routinely at a significant premium to what the market says, then it is open to abuse. All I see is a tail desperately looking for a dog to wag. I would be much more accepting of the business if the fee was a flat rate number whatever the value as this would remove any potential conflict of interest because it doesn't cost more to ascertain a grade based on market value. Flan size or intricacy of the design might make the job marginally more demanding, but not significantly so. By saying the cost of grading is coin value dependant is essentially the same as saying we will take more care getting it right. Low value = common= something not worth spending time on as you can always get another one with the weekly shopping. The cost of shipping a more valuable object is going to be greater. That is the only excuse for an increased charge.