Who said the market would be flooded? It was said in multiple places that it was not announced in the Previews who the artist was until later and was assumed most retailers did not know this.
As I said before, you're trying to buy at the worst time. Sellers love buyers like this.
Fair opinion, but I think it is the best time to get it before it becomes too hard to find in high grade.
J.Scott Campbell covers have that $ Memory like New Mutants 98 does. Once they start selling for a certain price, they hardly let up. If you think this book in particular will cool off and prices come down, it may take a few years, not the few months if at all. I haven't seen a scramble this hard for a Campbell cover, even more than Renew your Vows #1 1:50!.
I usually never have this much trouble finding a book at a decent price, but none of the smaller local shops had enough ordered to even get the 1:25, and the larger stores price gouge because of the eBay pre-sales.
A majority of the JSC covers from the last two years have decreased in value compared to their pre-sale and week-of-release sale price. He does a lot more cover than he used to.