I need to add a water heater for our new addition. Natural gas has always been the 1st choice for heating appliances because it cost less to use (in the Southeast part of the country), but with the increase in price expected, would it be worth the extra cost of the plumbing and the water heater or would it be better to install a high effeciency electric water heater? (It will be going in the attic)

thanks,

Lee