Experience mitigates the investor's risk or ensures the entrepreneur's success, depending on which side of the coin you're on. Understand the market space you're operating in. If you still don't think you have any competition, you probably don't understand your business sufficiently. Nobody else has a crystal ball and five years in dot-com time can be unpredictable. Overestimate Marketing Costs Revenue generated will most likely be on an extended timeline while expenses go into a compressed timeline.
Marketing is often the most underestimated area in business plans.
Marketing expenses are usually much higher than most people anticipate. If you're going to compress timelines from the revenue side, understand the importance of expanding marketing costs because they are directly related. Be careful not to create a situation where you have just enough money to ensure the failure of your venture. Check out their Web site. See what they say about themselves.