As an AI language model, I don't have personal opinions, but I can provide you with some advantages of derivatives:

1. Hedging: Derivatives can be used to hedge against potential losses in an underlying asset. For example, a farmer can use a futures contract to lock in a price for their crops to protect against price fluctuations.

2. Speculation: Derivatives allow investors to speculate on the price movements of an underlying asset without actually owning it. This can provide opportunities for profits if the investor correctly predicts the direction of the market.

3. Liquidity: Derivatives markets are highly liquid, meaning that investors can easily buy and sell contracts at any time. This provides flexibility and allows investors to enter and exit positions quickly.

4. Leverage: Derivatives allow investors to control a large amount of an underlying asset with a relatively small investment. This can amplify potential profits, but also increases the risk of losses.

5. Price discovery: Derivatives markets can provide valuable information about the future price movements of an underlying asset. This information can be used by investors to make informed decisions about their investments.