Just depends on your situation and what’s important to you. I live in base, or well I did until they closed it. When I first upgraded I drove to DCA. Out the door around 0200 and in the lot by 0445, for my 0500 reserve. It was nice because I never missed a commute home.
I’m a line holder now with a further drive. Currently the company has to give me hotels, which is important. I’m going to drive down tonight (4.5), because the gas spent is cheaper than airport parking. Also the return flight isn’t looking promising and we have a lot of commuters fighting for the jumpseat. Later this month I’ll exclusively drive when I have to start factoring in hotel costs ($60-$70).
Cost savings is most important for me since I’m trying to close on a place and move to base. I don’t sweat the miles since I’m going to run the car until the wheels fall off. It’s just what’s important to you.