Whether Amazon needs to advertise depends on your business goals and strategies.

Here are some considerations:

1. Increase sales: Through advertising, you can increase the exposure of your products on the Amazon platform, attract more potential buyers, and thus increase sales.

2. Increase brand awareness: Amazon advertising can help your brand increase visibility among your target audience, thereby increasing brand loyalty and recognition.

3. Market research: By running ads, you can collect market data and understand the needs and interests of your target audience in order to optimize your products and services.

4. Increase conversion rate: Targeted advertising can increase the likelihood that potential buyers will click on the ad and ultimately purchase the product, thereby increasing conversion rate.

5. Fierce competition: On the Amazon platform, competitors may run ads to improve product rankings and exposure. In order to stay competitive, you may need to run ads to ensure that your products are ranked in search results.

In short, Amazon advertising can help you achieve your business goals, but you need to decide whether to run advertising and the advertising strategy based on your budget, product features, and market strategy. If you decide to run advertising, make sure you understand the rules and optimization methods of Amazon advertising to ensure maximum advertising results.