Related thread:
And most of the comments there have a similar vibe as here tbh:
etc.
Also, iirc the record was already broken a few months later. 
As mentioned, the World record itself was cool, but these CGC-authenticated and labeled cards are laughable at best. I do see the appeal in them somewhat, for the very niche collectors (I still wouldn’t want one personally), but it defintely won’t add any value compared to other CGC-AUTH of the same card imo. Anyone who states otherwise owns one of these cards and plans to sell it eventually..
Greetz,
Quuador