I've been a software developer for over twenty years, programming in C, Perl, SQL, Java, PHP, JavaScript, and recently Python. I've never had a problem I could not debug using some careful thought, and well-placed debugging print statements.

I respect that many people say that my techniques are primitive, and using a real debugger in an IDE is much better. Yet from my observation, IDE users don't appear to debug faster or more successfully than I can, using my stone knives and bear skins. I'm sincerely open to learning the right tools, I've just never been shown a compelling advantage to using visual debuggers.

Moreover, I have never read a tutorial or book that showed how to debug effectively using an IDE, beyond the basics of how to set breakpoints and display the contents of variables.

What am I missing? What makes IDE debugging tools so much more effective than thoughtful use of diagnostic print statements?

Can you suggest resources (tutorials, books, screencasts) that show the finer techniques of IDE debugging?

Sweet answers! Thanks much to everyone for taking the time. Very illuminating. I voted up many, and voted none down.

Some notable points:

• Debuggers can help me do ad hoc inspection or alteration of variables, code, or any other aspect of the runtime environment, whereas manual debugging requires me to stop, edit, and re-execute the application (possibly requiring recompilation).
• Debuggers can attach to a running process or use a crash dump, whereas with manual debugging, "steps to reproduce" a defect are necessary.
• Debuggers can display complex data structures, multi-threaded environments, or full runtime stacks easily and in a more readable manner.
• Debuggers offer many ways to reduce the time and repetitive work to do almost any debugging tasks.
• Visual debuggers and console debuggers are both useful, and have many features in common.
• A visual debugger integrated into an IDE also gives you convenient access to smart editing and all the other features of the IDE, in a single integrated development environment (hence the name).