When is price a strategy? Almost never.
Some start-ups think low price is a good strategy to hook those important, first customers. On the other end there's the successful products at the end of their life cycle, with lots of competition, where product managers and sales teams use price as a means to extend product life. In my experience using price or any offers that focus on the customer paying less for your product when there has been no change in COGS, is a sign you may no longer have a real value proposition....