Littlebits, a lesson in magnetism or electronics?

I was just introduced to littlebits via an email on the Arduino forum. I just don't get it? for anyone 8+ years of age; I'd rather get 50 cents worth of leds and teach polarity, resistance, regulation and such ( over-current and burn out a few in the teaching process). ...not magnets. I think these "bits" dumb down the electronics aspect of what's being built. ...maybe it will fuel its users beyond the magnets and hopefully they'll understand what's really happening and they realize the magnets are only a conductor.

If you gave a littlebit user a 1K resistor, an LED, and a 9v battery, would they ask "where are the magnets"?

...just my thoughts on the "bits"