Third party authenticating is a fluid concept. You now see people talking about old vs. new PSA slabs, REA had multiple autograph authenticators, with Steve Grad now at Beckett, and James Spence on his own, and SGC it's own brand. I don't know off the top of my head who is at PSA/DNA anymore. To think in 10 years that all of this will be status quo is obviously not a bet anyone would make. So if you are "investing" in a baseball card with the expectation of that status quo, you should just be eyes wide open about this stuff:
Your goods are only as valuable as the market credibility of the authenticator at the time of sale.
I do think this is one reason why REA double-certified a lot of its autographs. Take this signed T206 Marquard, which was encapsulated as authentic by SGC.
http://bid.robertedwardauctions.com/...e?itemid=44742
Note how they didn't just rely on SGC's word. They also provided an Auction LOA from James Spence/JSA, and pre-certification by Steve Grad and Brian Sobrero/Beckett Authentication.
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