osama, I might suggest seeing what happens after a week or two of your wife living with the Model S, and, this is the important part, not having to go fill up at a gas station ever again.
While the thought of getting stuck in the cold waiting an hour for a tow truck is terrible, it's a low probability event and one that is equally prevalent with a gas car. However, with a gas car you know you will be stuck out in the cold for 10 minutes every week or two filling up. Over the course of a year that's many, many hours.
Once your wife experiences that (2 days isn't long enough), I suspect she'll come to thank you. So will her fingers... kept warm plugging in your garage, not having to hold a freezing gas pump handle outside ever again.