I will agree with the Gator, maybe even a tad more then $50 as a lot of players want the old Champion and not the New Champion Metal Flake or the Champion 3 as MF lacks glide and the 3 top is like the old 2000's completely flat top Gator in any plastic in that as soon as one can see the spin of the disc slow down the disc drops out of the sky. I hear that new Gators that are Flat top in any plastic do about the same. That USDGC disc is also a Champion Gator and if it is a almost flat top disc, they go for big bucks about $50-$60 maybe $65 because they do not have as bad a glide problem that the completely flat top Gators had in the 2000's or that the limited run 3 top Champion Innova is selling right now, also the USDGC tournament logo makes them more collectible for some reason.
Those old DX circle ROC are highly sought after and can get as high as $50 but more likely to be sold in the $30-$45 range.
If I remember right I was told the Champion Wraith was first released in 2006 for the Worlds, before that the DX and Pro were all you could get for the disc mold as if Innova had been testing the mold to see if it would sell. This however does not help with price but does help to know that the Champion Worlds is very sought after and if selling, $40 would be the minimum starting bid for the week long process you have for the disc.
That Valkyrie if it is not a super stiff Champion from the first few runs but rather the gummy stuff then more of the Valkyrie throwers will go for the disc. Somehow the Stiff Champion was never desirable to most of the Valkyrie players unless it was a high dome Valkyrie as then it did not matter grip wise as to how the Champion was for a higher dome Valkyrie. The disc will sell for $30-$40 probably not much more then $45 seeing as how the plastic doesn't have a single bright color in the I-Dye and that makes the disc harder to see on the ground in some circumstances.
