I am enjoying building my modified 2002 right now. Every mod planned and executed so far, I consider tasteful and an improvement over the stock system. I've driven enough 2002s to know that lighter = more fun than simply adding power, so I'm balancing the pursuit of both, while respecting the limitations of the chassis, with this current build. What I will end up with is a truly fun driver, that is hard to replicate, and therefore I will keep for a long time.
Stock cars are fun for a while, but they are never my first choice if I have a modified, fast car I can pick to drive. Right now, I have a totally stock motor e30 m3 which is getting boring...I may have to add a 2.7L S14 to the build sheet on that car soon.