LUA wasn't that hard for me because I already knew TI-Basic and a bit of Python, but the idea that because redpower has computer means that CC is pointless is just retarded. Redpower computers have a very unfriendly learning curve and are harder to source. ComputerCraft works for the same reason the ZX Spectrum worked, it comes with a relatively friendly programming language that can do a lot and is cheep to build. Even a beginner can do a lot with CC.