I'm curios to see who uses local-only ADSL accounts? If you do, please tell me

It's for a basic market research, to see if it's worth our while to push client's websites onto local servers. Local hosting bandwidth cost more, so I need to see if it's going to be worth their while to move to a local hosting packages in order to get these local-only ADSL clients, or would they be waisting their time & money to try and convince someone who wont' even pay R30/GB for normal ADSL access?