Why OUTRAGEOUS 9mm Prices?

I found an invoice dated Dec 2019 where I purchased a case of this same ammo for $170 inc tax & shipping.(17 cents per).

Now it's 72 cents per + tax & ship. WHY!!!???

This is CRAZY AND STILL ISN'T AVAILABLE FROM MIDWAY

Sellier & Bellot Ammunition 9mm Luger 115 Grain Full Metal Jacket Case of 1000

$718.99 ($0.72 per round) + tax + ship