Well, same story with me...so I KB'ed it and still wasn't happy with it - still needed forged engine parts, stronger transmission parts, axles, etc. Already dumped 10k+ into it. I'd say just do what you think you'd like, but be prepared to do it right or you may still be unhappy with it.
I had the chance to get rid of my '02 and right now I'm waiting (like someone else mentioned) for the next generation Mustang. But until then, I'll probably Stage3 my SRT.
I think the problem is too many think they can make a "perfect" mustang if they have deep pockets(not to deep obviously). Others are trying to make up for other shortcomings and they become upset when they find out their mustang is one big ol shortcoming.
I still will never understand people who do $15k+ in power minded mods and they are not being paid to do so($$$$ drag racing). Alot of mustang owners do all this before they even buy a home(or in some cases move out of the parents house)
Alot of kids also get blinded going from paycheck to paycheck expecting that next mod to be the end all -cure all, only to find a week later they are not satisfied.
, still pretty easy for a mildly modded evo/sti/srt4 to take down.