One possible explanations is because all humans are motivated to seek pleasure and avoid pain, to seek hope and avoid fear, and finally, to seek social acceptance and avoid rejection. Anything new, unless it is significantly better, poses a threat.
For new entrants to stand a chance, they can’t just be better, they must be nine times better. Why such a high bar? Because old habits die hard and new products or services need to offer dramatic improvements to shake users out of old routines.
Author of books on technology, psychology and business whose writings appear in the Harvard Business Review, The Atlantic, TechCrunch, and Psychology Today.