well.. I voted no..
I always think about doing this and that... an while I plan to make it better over time, I will probably stay with basics and making sure that whatever needs replacing wil become better.
I think spending a little for a lip kit, a little chrome/decals etc. making sure you buy the best tires, good wheels and break when they need replacing is OK.. I would do it anyways. Maybe putting on the basics, like intake etc.. might be worth it as well..
but beyod that I say no..
if I had the money to waste, I would have bought C1 cars (mazda3 or volvo).. btut I couldn't afford them... now its pointless to spend thousands on a car that was a compromise (regardless of the fact that it is a dream to drive it is not a car I will be able to stick with for longer than 4-5 years... so it is not woth modding.
sorry for calling Focus a compromise, but honestly it was for me... I could not resist the Eployee pricing...