"Unit Testing is usually worth the effort, but the amount of effort required isn't going to be the same for everybody."
-
Is Unit Testing worth the effort? (joelg.info)
Unit testing is a lot like going to the gym. You know it is good for you, all the arguments make sense, so you start working out. There's an initial rush, which is great, but after a few days you start to wonder if it is worth the trouble.
