None of these, to me, a new Lisper, are what macros are about. Macros are about being amazingly lazy as a programmer. About finding those patterns of code that you write all the time, and making the system do the work for you in ways that are nearly impossible in other languages.
It's not about speed, though certainly macros can be faster, especially if you look at things like the CL regex engine. The point is that I'm lazy, and I don't like typing things, and macros let me say it once, and more succinctly than other things.
Lisp isn't the hammer for every problem, nor is Perl, nor is any tool. I don't trust a programmer who things his favorite hammer is the best hammer.
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