Analyzing the Market: You cannot afford to operate on the basis of assumptions about the market and customers. You need to conduct a thorough analysis of the prevailing market environments, your strengths & weaknesses and the existing competition. Study your target customers and get in_depth knowledge of their needs and preferences. Based on this, you can determine your marketing objectives and position your product suitably.
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?