Should I choose an insulated door if my garage is not insulated?

Good question....

With today's high energy costs, insulation in a garage door is just as valuable as anywhere else in your home. A garage door opening is very large and Insulated doors will help to reduce the transfer of heat or cold air into your garage and your home, plus it will reduce noise.

An insulated door will help keep temperatures in the garage fairly stable to reduce the temperature fluctuation in any rooms above the garage.