Gorgeous book, congrats.
Being that your copy is now the single highest graded copy I would estimate the value of this book somewhere in the 2,000 - 2,500 range. Statistically, it should probably be worth more but there are just not enough WW collectors with deep pockets. In auction, I think the bidding would stop in this range.
Good luck !
Thanks Bomber-Man for the estimate. Seeing that there has only been 12 graded by CGC up to this date, it's pretty rare and hard to judge exact pricing. I have a feeling at auction it would go for more but who knows. Would you know how much the 9.2 sold for?