If you pay someone to come to your home to teach, you are paying for their time teaching and indirectly for their commuting time, and the ratio of commuting time to teaching time will be large if the person is teaching a single subject for one or two hours. So one may consider getting lessons through Skype. And then you may consider getting the lessons for much less from someone in (say) India. I have read articles about children who attend school and are later tutored via Skype, often by people in other countries.
