Arbitrage is the art of buying and selling the same thing at different prices, often to make a quick buck. Or, in this case, to make a quick joke.
There are many types of arbitrage, including:
Or, you know, just buying and selling stuff because it looks pretty.
Want to learn more? Arbitrage Tech
Arbitrage in real life is like a bad penny that just keeps turning up. It's always coming up with new ways to make you feel like you're making money, but really, you're just losing your shirt.