I can almost understand buying diamonds, gold or other precious metals/gems. Those things will hold their value, no matter what happens to the rest of the economy.
Buying something like the LAW vice, isn't an investment. It MIGHT be ... if the economy stays high, Waldron dies and ownership of the vises become even more cult-like.
If the economy tanks, jewels and precious metals will still have buyers. LAW vise don't have jewels or precious metals in them, and will be worth less than new, just like any other hobby tool.
I've got nothing against people who pay big money for collectible items, as long as the pets aren't going without food and care to afford it. But, personally, if it's not going to help me in an apocalyptic future, it's not worth collecting.