What is the purpose of yourbrochure? Is your brochure an advertisement? Is it a detailed product description-marketing piece? Or to put it another way, what kind of customers will be getting your brochure?
The first type of brochure design is created to attract a new customer's attention. Just like an advertisement, it screams for attention, and plays on the emotions of the customer. It has a big headline, strong visuals, and a distinct call to action.
This brochure design works to build interest, and to create desire for your products or services. It instructs customers to follow through by returning a coupon, or calling, or coming in.
The second type of brochure design is created to follow through with customers who want more detailed information. These customers have contacted you with questions. Often they want to know everything about a product or service. The second brochure design is created to give them what they want.
Certainly a brochure can both get attention and give detailed information, but you may not want to do this.
What are you trying to accomplish? Do you want new customers to come into your store? Then create interest and excitement with an advertisement type brochure designed to bring them in.
Or are your customers looking for information? Then you want to create a brochure packed with information specifically for them.
It is better to create two different brochures to accomplish these two different goals. Detailed product information will not entice a new customer to call. A lightweight sales brochure will not satisfy a demand for more information. Define your objective clearly, and use your brochure design to accomplish your goal.
Think about this: If you are sending the wrong brochure, you are just wasting your money, and you are not impressing your customers.

