Every business has goals and those goals must be achieved at some point. In-person interactions are a great way to make that happen. The human/emotional connection is at the heart of your relationship and that is the reason that you have a relationship at all.
It isn’t about writing random tweets about what you had for breakfast and what shoes you want to wear today. Twitter is so much more than that and if you build it into your marketing strategy from the beginning, it will serve you well.