And the key to THAT is to have a lunatically high disposable income!! Or buy selectively, like Marvin. For me it depends on whether a coin is for research or the collection. For the collection, I don't want to go through the hassle of disposal, so will accumulate as many images of the target coin as I can get and then decide on a list of acceptable pieces. After that it is a case of waiting patiently. On the other hand, if I want to do a bit of research, then as many examples as can be obtained is the ideal situation which inevitably means a compromise on grade. Colin G must be in the same boat with his farthings, or Chingford with his coppers. After all, none of us have unlimited funds on tap 24/7.