Why is it that peripherals operating on Bluetooth, like the Apple wireless mouse and keyboard, for example, are so darned expensive? I mean, I could tolerate spending a few more bucks considering that the device has to perform all the functions that a "wired" one does plus modulate and transmit a signal. But I mean, prices tend to be around twice that of a wired version. Can this be justified? Also, I'm looking for a bluetooth keyboard for my PowerBook so if anyone has suggestions, it would be appreciated.