I have had people ask me over the years about my garage doors. I have solid wood carriage style doors and I believe from the feedback I get that they make a real impact on a home.
(I really dislike when the doors face the front of the house, but unfortunately mine do, there really isn’t a reason why as I have a wide lot which could accomodate side entry but that’s what they were building when my house was constructed. To cure the ugliness of it I added quality wood doors with windows and hardware. )
I just happened across a website that has great pictures and ideas to put barn style doors inside as well which many of my friends have now as it’s very in-style.
Take a look at their website and consider upgrading your doors if they are visible as I think it will add value next time you go to sell your home. I custom ordered mine at Home Depot, but it seems there are lots of speciality places now.