Why Widgets?

What so good about widgets?

I am not yet convinced, so help me! Why are widgets the best thing since punched cards?

Because I can make a RSS reader with one? I need a run a widget engine for that?

Because I can get wifi strength? I have a tray application?

Because it will tell me the time? I have a car, phone, watch, oven - they all tell me the time.

Because I can get stock ticker information? I have a trading platform or a browser.

Could one of you Widget evangelists please tell me why they are so good?

I would like to be a convert, a disciple of groove, but I am not yet convinced.

regards,

Nigel