The Energon Pub

I'm trimming down my collection sealed TFs that I'm probably never going to open. Of these, the one that's DEAD MINT is the exclusive GF Soundblaster, the Soundwave repaint Cybertron didn't do.

What's confusing is that I only see 4 listings of this on Ebay, all MISB, all in Japan, and all look sketchy in some way. 2 are priced about $187 USD, 2 are $446-$449 USD, and each "price-pair" uses the exact same photograph, despite all 4 having different user I.D.s. And some listings have more than one for sale, but those sellers have some negative feedback.

I'm a tad confused as to what this means, and how much any Unicron Trilogy completist would be willing to pay, since all 4 listings smack of fakeness. Are there no loose listings of this because it's an ironic case where loose but complete is more desirable because UT die-hards want him to represent Logos Prime in their Original 13 display, but not enough to open a sealed exclusive, ruining an MISB Soundblaster?

So, should I list it on Ebay for $500 and let it serve as an attention-getter for a year?
Should I bide my time and get mine AFA graded? Never considered doing that before, but I've never managed to keep a sealed box in this perfect a condition before. Bought it (off BigBad? IDR), and never handled it for a good decade and a half.

So if anyone is seriously interested in buying, please contact me and I'll send pics. But I'm mostly asking for advice at present, so any Seibertronian who has the foggiest idea of GX-03's actual value PLEASE respond to this!

Thanks in advance.