Investing in a new garage door is not a trivial matter, and it is a good idea to know what you need and what will suit your budget before you make the commitment.
Firstly you will need to consider how the door will harmonize with your exterior. If you have a sleek modern design, you might want something in glass and metal. If you have a more traditional home, you might go with a carriage house style door.
If you live in a cold climate, you might think about insulation. Even if you don”t use the garage door for anything other than your car, having your garage insulated can help reduce heating costs because the garage can operate as something of a buffer between the outside and your living space wall.
Personal taste accounts for as much as practical matters. Having a well insulated door is great, but if you do not like how it looks, you will gradually become dissatisfied with your choice.
Finally, budget is the bottom line. There are some ways to cut corners, like the difference between having a door that opens quickly as opposed to slowly. Slower ones are cheaper and you would have to decide for yourself how important that is to you.