- Electric appliances are generally cheaper than gas ones
- Some of the cost of said electric appliance could be recovered by selling it, if & when get gets NG
- The cost of hooking (connection to the street) up to the NG service is not going to be cheap
- Paying a NG billing charge every month, especially if the only thing hooked up is a range is going to cost a packet
- There's no guarantee NG will become available
Economically, he's better off staying with an electric range. Personal preference for cooking with gas trumps this, of course.