I have always been very healthy and have never had any medical conditions myself and or any in the family.
Because of this I have only had good medical insurance for the past 15 odd years which has saved me a very large amount when compared to medical aid for the same period. NOTE: I was fully covered for 99% of hospital related stuff with gap cover etc.. so nothing reckless like going without cover.
In the past 15 years I have been to a doctor three times and to a dentist about twice (last time was two months ago, he just checked and cleaned, nothing wrong) so the medical insurance was the right thing for me and as said, it saved me a fortune.
Since hitting 40 I switched to a more comprehensive medical aid to cover more of the basics. Still do not need them (hope I never do) but I'm changing my cover according to my possible needs from here on in.
So what I'm trying to say is that people should not just look at price but rather at what they actually need. Many go out and get the best they can afford because its the right thing do while others try and save when its the wrong thing to do.
Get your situation properly assessed and make an informed decision from that assessment. Don't just go with the advice others give you, you may just end up paying with your life.