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<p>[QUOTE=&quot;physics-fan3.14, post: 2035837, member: 19165&quot;]No. Cola is matter of taste preference - while I may strongly disagree with your choice, there is no generally accepted right or wrong answer, because there is no standard. You can&#039;t compare RC cola against a standard and say &quot;Because of this, RC cola is inferior.&quot;</p><p><br /></p><p>The marketplace has decided that the 2nd and 3rd tier graders are sub-par because, on average, they fall short. There are three main issues: </p><p><br /></p><p>1. These graders are less accurate. The marketplace has decided that the grades NGC and PCGS give are the accurate grades. They don&#039;t publish their standards, so we can&#039;t really compare them to a reference, but the marketplace has made the Top 2 a defacto reference. You could say that the ANA grading guide is the reference, but even then it is questionable. In short, the marketplace has decided that NGC and PCGS grades are, on average, the correct grades. </p><p><br /></p><p>2. These graders are less consistent. While NGC and PCGS don&#039;t always get it right, they are usually within a grade point (or maybe 2 in the most egregious cases). The second and third tier graders will often vary by a much wider margin. </p><p><br /></p><p>3. (Most of) The other graders have no guarantee. This may not seem like a big deal, because it isn&#039;t often excercised, but NGC and PCGS guarantee their grades, and any problems which may arise. If a coin is later proven to have a problem (putty, counterfeit, etc), NGC and PCGS will pay for the coin. If the grade is later found to be inaccurate, NGC and PCGS will buy back the coin. Having a guarantee like this goes a very long way to establishing the trustworthiness of a company.[/QUOTE]</p><p><br /></p>

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