Exactly. I've seen 7.62x54r as cheap as 17¢ recently ... but it was corrosive. I've been able to find 54r one notch cheaper than 39 every time I compared the 2.
Ignorance is their best tool. Make education ours.
Thus, the only inquiry that this Court should conduct is to determine whether the firearms prohibited by the Act are protected by the Second Amendment. Because they are, the Act is simply unconstitutional.