Any Drawbacks to Using Circuit Breaker instead of Fuse?

In all my years as an electrician, I preferred fuses. They are cheaper to buy and they will carry the load until they blow. Unlike a CB will degrade as it is loaded to full current. Each time it trips it gets a little weaker. Then it heats up internaly and starts tripping sooner and sooner. And you can get fast acting fuses or medium blowing fuses. or slow fuses. And like the poster ahead of me said. what happens if it resets when you are not around.