Mr. Deewayne2003 - I do not in any way mean to be rude, but I disagree with you.
Firstly, you are not comparing like with like (as you admit). Kenya was closed to hunting in 1977 (when Madam Kenyatta's work was done) and, as you say, rhino and elephant are off the menu nowadays. These are the supply constraints.
At the same time, the demand has increased. As an example, Britain's wartime exchange controls, imposed in 1939, were removed by (the great) Mrs. Thatcher in 1979. Slowly, Britons could (re)start safari hunting after 40 years of de facto prohibition. (European countries gradually removed their controls during the 1980s.) Here was a new and untapped market for canny South African boers of marginal land!
From my own experience, about 5 years ago I compared the cost of taking a day's driven pheasant shooting in Kent (200 birds) with the cost of a two week safari in South Africa. The cost was broadly similar, including air fares, at around £8,000/ $11,000.
Of course, I am not swanning around Africa like Meryl Streep: I am in a game lodge and taking my sport from the prix fixe and not a la carte. As long as you stick to biltongbeest and boereworsbeest and do not get tempted towards the kudu or buffalo options on the menu, it is quite possible come away with change from £10,000/ $13,500: I do it every year.
From what I can see, the South African game lodges are catering to a much more mass market experience. I will agree with you that at the very top end of the market a traditional safari is much more expensive; but at the lower end of the market it is much more affordable. And this is demonstrated by the large number of sport hunters transiting Johannesburg every year.
Returning to Mr. Shaaka, the OP, he, I suspect, is caught somewhere in the middle. His options are to pay more to maintain his existing standard of hunting or to come and join the hoi polloi like me. Although he will curse me for saying so, he is the victim of the growth of the popularity of safari hunting. Fuelled, incidentally, by sites like this one.
Of course, in another 20 years or so we will all be priced out by hordes of Chinese hunters. That is why I urge all you Americans to vote for the great President Trump, who sees the threat clearly.