You will need to develop your pricing strategies for all of your products and services. Do you want to be higher or lower versus competitors? Do you plan to include labor/overhead/materials in costs? Be sure to list your pricing strategy for each product or service. A comprehensive marketing strategy will ensure your success because it will tell you how to obtain and keep customers, how to compete in your marketplace, and what resources you will use to achieve your goals and objectives.
Imagine if you can do all these and manage all these in a marketing plan? Systematic, organized, well thought, innovative and captured all your pertinent business information, don't you find having a marketing plan is useful for your business?