I'm not anti- any model airplane -- RTF, ARF, kit, or scratch-designed & -built. There is a usefull place for every one of them. Why put yourself in the position of avoiding new experiences & flying fun? They all fly & they're all fun. The RTF trainers are outstanding in their intended role & you certainly don't have to keep your RTF in stock configuration -- there is plenty of creativity & building skill required to convert an RTF trainer into a sky-burning hot rod, or a multi-engined masterpiece.