> But it'd be awful if my best shopping option was 15mi away.
In much of the rural US, 15mi away is having your good shopping close by. A lot of areas make due with their "best shopping option" being well more than 15mi away.
Yes 15 miles for good shopping sounds pretty nice. I'd say I've got it fairly good for being rural - only 23 miles to the nearest Walmart. That town isn't really great shopping though.