I like Lua too. I did learn it recently, because there's a native implementation of Lua included in MorphOS by default, and it can be used to replace ARexx. I converted some of my ARexx scripts to Lua and also wrote some new ones. You can find them
here if interested.
Lua is still missing something compared to ARexx, but OTOH it's more powerful in many other areas. Nevertheless I enjoy making scripts with both languages.