When I ask entrepreneurs and small business owners, it is not unusual for not having any marketing plan. I once read that Sir Richard Branson never had any marketing plan when he started the 1st Virgin business many years ago. In fact in one study of entrepreneurship (I couldn't recall the name of the study) was that as much as 50% of entrepreneurs and business owners don't have a business plan and marketing plan when they first started the business.
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.