Welcome Ken. I don't know whether you have any children to populate the back seat but that doesn't matter. I have a 4-seater too but the children went long before I got the car - they are more likely to want to borrow it to drive than sit in the back with me in the front.
But the back seat is there for what I chose it for - a boot space so I can bring more wine back from France. And here at home, the car gets used on more occasions. Guiltily, I don't remember offering to take the wife shopping before having the car. Richard is right, 4 seaters are good.
Enjoy it.