You are right on about that. Imagine if the only supply available was what the so called "scalpers" were buying and reselling. Current prices would seem tame in comparison.Exactly, except one thing to remember- those guys who might fill their basement during times of plenty, with an eye towards profits during times of lean, they are actually good for the market. As much as everyone hates scalpers, these guys are not scalpers, even if their prices are high like the scalpers.
They aren't the ones waiting for the ammo shipment at BiMart with their wives, kids, cousins, and neighbor's former roommates to clean off the shelves and resell here for triple. They bought in times of plenty when the shelves were full and available for everyone. When they resell now, it adds to the available supply and helps moderate prices.
Want to fill your basement during times of plenty, for whatever reason suits you? I say go for it. Just be aware of safety and fire codes, but otherwise have at it.