Buy, Sell, Trade Rack extensions
I think we should be able to sell and trade rack extensions with other reason users. Just so we can have a little more control over what we bought. Especially when the racks can get pricey, after a while, you might want to sell or trade it for something else. Buying, selling, and trading is how we survive in this world. This will make the rack extension experience flexible.
Ignorance makes a great slave, free yourself with knowledge.