At the end of the day the world is a richer place than its was 200 years ago.
If Anderson was alive today i'm sure he would be just as popular as JK and his books would have reached just as many people.
Plus, 200 years ago didn't have the same media push for sales as it does today!

Imagine! What if Anderson was alive today! What do you reckon the competition would be? Or are they soo different [in context] that there would be no competition at all?..... hmmm