Not a chance in, a very hot place.
Totally an ego purchase.
Personally, grading does nothing for me except prompt me to skip looking at the item in question. When looking for a stamp to fill a space, I look for something that pleasing to "my" eye. Sometimes that's a mint copy, or a cool looking cancel. I either like the way It looks or I dont. I may be weird with this thought - I look at the price first, then the stamp.
I have to be able to pay for it.