The performance hit of a GC is less than the hit of a language that wasn't designed to be compiler-friendly. Scheme or CL will perform better than scripting languages.
You don't need really hard problems before the benefits of a language with macros become obvious. SQL-driven web apps are a lot easier to write if you have macros, for example: http://brl.codesimply.net/brl_4.html#SEC31
You don't need really hard problems before the benefits of a language with macros become obvious. SQL-driven web apps are a lot easier to write if you have macros, for example: http://brl.codesimply.net/brl_4.html#SEC31