I used to tether my laptop to my Sony Ericsson's GPRS connection K750i via Bluetooth - there weren't any monthly fees or other faffing about, I just paid for wh

I used to tether my laptop to my Sony Ericsson's GPRS connection K750i via Bluetooth - there weren't any monthly fees or other faffing about, I just paid for what I used (I think it was by the Megabyte in those days). Why do they have to make it complicated?