Found this: https://reverb.com/item/27286585-iba...EwsQZNIWQLM6lg
He's asking way too much. I have an original 1990 Universe UV7PWH signed by Steve Vai as well which is more desirable than this JEM and while it is very valuable I wouldn't expect to get $15000 for it. What do you think about this Blinding Rock Mirror for this price? I love this guitar but I have never seen one in players condition in particular at anywhere near this seller's price
P.S. Not sure if Vai himself decided to sign it where he did or the owner asked him to but I'd be worried that his coveted signature would be wiped away by playing the guitar in the sitting position! If I had it I'd clear coat it to ensure it's protected from that ever happening.