Because despite the fact that we can travel around the world in the time it takes to get a good nights sleep and a couple of meals: people rarely wander more than 25 miles away from home for the duration of their lives.
I don't know how many days that trip takes - especially while sightseeing - but explaining they're 3936 kilometers (2445 miles) apart gives an idea, paradoxically because it is too large to easily picture.
If you're not, then you're more concerned with how long it takes. Actual distance doesn't tell you that very well. Besides traffic and road conditions, you'll need to know what kind of driving (city/interstate/rural/etc.).
Weird question (and sorry for so many shouts): did Overpower really release in August of '95? I could have sworn I attempted to play it with a classmate who shouldn't have been a classmate by that point.