How much should a startup spend on marketing? The answer, according to VC Fred Wilson, is zero. The best marketing for a startup when it is just getting off the ground are kick-ass products. Great products market themselves. If you have a line item in your business plan for marketing, you are doing it wrong. That is not to say that startups don't need to do any marketing at all. And, let's be clear, Wilson is taking about consumer Web startups, not enterprise startups or those in other industries. But as he writes in a post today: