Interesting trip for sure! haha. It depends on where I buy a car and if I can find one that won't have a recall hold on it. If it's in a northern state, I'd probably just have it shipped.
I've considered flying there and driving it home but I'd probably only do that if it were purchased in a southern state at this time of the year. One other item is most of the good deals are not in a larger city, which makes flying into those areas more of a challenge (and more costly). So I'd have to evaluate the time, airfare, hotels, food, fuel, etc - to determine if it was worth it. If it were the spring, I'd make a trip of it and add a couple of days to check out some cool sights.