Yea, yea, laugh it up, fuzzball!
Actually, for all the grief Mustang has gotten over the years, it's lasted longer than any of it's contemporaries. Ford did a good job remembering that the car was originally designed as an affordable, sporty car. In more recent times, they kept the car through minor changes, keeping it's generally sporty nature, but not letting the bleeding edge racer boys define the car, causing the cost of making it and the cost of buying one to spiral out of sight.
In the end, while it's domestic competitors all died and are only now coming back to the stage, it stayed the same...affordable, reliable (relative to the other domestics) and moddable.
In a few years, I'll get a nice used GT convertible, put the NACA hood on it, maybe a Paxton underhood supercharger, paint it up like my Mach 1, and have my mid-life crisis...in a car far more drivable and reliable than my '71 Mach.
FC