The article is written from an investing perspective. Of course, it is not written for an audience with any experience in collecting or grading collectibles. It is for people with more money than knowledge. Also, it is rife with hyperbole and unfounded generalizations. Two of my favorites:
"...third-party authentication has grown along with eBay, which despite its best efforts unwittingly provides a huge forum for frauds who turn out fake collector coins, stamps, sports cards and autographs."
"Professionally graded collectibles fetch several times the price of ungraded pieces, as buyers can be confident they're getting what they've paid for."
As an eBay seller, it's nice to know that I'm being lumped in with the rest of the fraud artists. Thanks a lot. Fortunately, there are still some buyers around and they actually seem willing to pay more for raw notes than slabbed notes.