Hi Larry
It not me that is returning to SA, it's my mom, she has been here for approx. 3 years now (with 1 year break in between when she went back home to do her residency). We have been here for 7 years and we are Canadian citizens. My mom is 71.
Firstly (MONEY)

her SA pension dosesn't amount to much after the conversion rate. She can't afford a car and insurance is astronomical at her age +_$5000 per year. We help out as much as we can, but we are in a fix at the moment, my husband accepted a job out of town for less money (but a very good company to get into) and we are trying to keep 2 homes at the moment until we can move, which doesn't look like it will be soon. Thus when we move we will need to buy a 4/5 bedroom house which we won't be able to afford so thus another reason my mom is going home, is too help us get on our feet.
Secondly(HEALTH)

the winters are not good for her health, she has hips and knee problems, aswell as other things, so finds herself housebound during the winter months. Her health has deteriated so badly during this last winter. and I feel that she has come here just to wither away, when she was in SA she was a lot more active. She loves her gardening and as we all know it's seasonal here. she has life long friends that she misses, at the end of the day she had a richer quality of life back in SA. Good Nurseries/Decent shopping malls (woolies etc)/casino = Rands/friends/Ocean + salt water seafood/good weather/Good old flea markets, etc etc.
Thirdly (FAMILY)

my brothers want her back in SA, I don't want her to go but It's the best thing for her. It's extremely sad because when you immigrate the most important thing that you miss is family infra-structure, my 2 kids adore my mother and it's going to be a traumatic event

when she leaves in August.
She would love to spend 6 months there and 6 months here but she feels she is getting too old to travel back and forth. We are living a roller coaster ride at the moment, my husband says if he didn't accept this job we wouldn't be in this position, so he keeps asking himself, did he make the right decision OR should he leave the company and get a job back down here. Very frustrating, he comes home on the weekends and tries to fix up the house so we can sell it. He is a perfectionist and wants this 50 year old house almost brand new before selling it.
(CANADA)

My mom will miss the seasons changing, especailly spring when all the bulbs come to life and the trees get their leaves. The medical aid OHIP system has been extemely good, she even gets tax money back every year because of the income she bring over (her pension money). She will miss the safelty aspect here, she never locks her doors ( She has her own granny flat). Mostly she will miss us.
Well that's our story.
Thanks for asking
Lisa