A professional will eventually wear even the best tools. And since they use those tools every day, they can keep an eye on wear. So it's not that crazy for them

A professional will eventually wear even the best tools. And since they use those tools every day, they can keep an eye on wear. So it's not that crazy for them to use relatively cheap stuff. Plus, a tradesman will also sometimes lose tools, drop them in places they can't recover them from and so on. On the other hand, the day I want to fix some issue at home, the last thing I want is the tool I use perhaps once a year to be an additional source of issue, because it involves a round trip to the store.