Or takes forever building the feature and/or takes forever getting it right, and the one customer who wanted it gives up and leaves in the meantime. Or even wor

Or takes forever building the feature and/or takes forever getting it right, and the one customer who wanted it gives up and leaves in the meantime. Or even worse they hang on with some tiny engagement that turns out to not actually bring in a lot of money, but still sucks up 15% of developer time (not to mention customer support reps & business development people constantly having to keep them happy) and adds extra value for no other customers.