(shrugs) Any type of component or capacitor can fail.
Typically A500s, A2000s fail less, but no component lasts forever.
The thing with capacitors is, they can go bad on you, and you don't even notice.
Other times you certainly do. My Rev1B A1200 is looking quite healthy so far but it's early days yet, the keyboard is half dead at least, but I have the means to bypass that little issue...
