Where are the people??
I spent several years in Africa, crossed it on a bike, 18,000 miles. The animals, geography, sunsets are all fine, but the best things about the continent are the people. On a tour like yours, you go where they lead, and SA tours certainly won't let you interact much with the, what ever they call them these days. My memories and pictures are of people, some animals, but there are so many it gets redundant. I suppose you can't expect too much from a few weeks where handlebar time is the prime objective. Try a year or two, and you'll have the time of your life.