Testing obviously takes time. The problem with not having tests is that it takes time, but you don't necessarily know that it's taking time or how much. Lots of

Testing obviously takes time. The problem with not having tests is that it takes time, but you don't necessarily know that it's taking time or how much. Lots of people think they are too smart to need tests, and it's just a waste of their time. But they are spending huge amounts of time fighting bugs, and even more bugs are getting out to users.