SJ:
I thought the stock market's average was only 9.75%, which is not repeatable in near future
It is an average, rather like the housing average at 3.5%. Short run outperformance periods are common - the stock markets have pretty much doubled over the last 2 years but market-timing probably isn't something you should be building into a retirement spreadsheet! But the long run average is what it is. Nothing can be safely extrapolated into the future indefinitely, housing included, but we have to start somewhere. In all cases, some people will do better and some will do worse. It is the aggregate result which creates the average.
But the discussion does seem pretty UK centric. There's nobody out there saying 'yes, I'd keep the house in Munich' or Paris or Detroit or wherever. And it is that UK owner-occupier mind-set which is driving the philosophy. It seems to be pre-supposed that there is intent to return to the UK either at some time, or if the situation goes bad, or 'at the end'. Why? Again, that is a notion of an individuals future requirement or expectation. Nothing wrong with it, but understand at least that it is an emotional response! I personally cannot see any reason whatsoever to have a large part of my net-worth locked up (a small part, maybe, out of convenience, but not a large part) in that way, probably losing in currency terms steadily for the next decade or so.
I also don't see any reason to pre-suppose that if I had to leave (force majeure) that it would be back to the UK. Malaysia, the Philippines or Vietnam are more likely. And I don't honestly think in my dotage that I would have much cause to return to the UK. That's me though, and it hasn't been tested yet. Ronnie Biggs couldn't cope once he fell ill, and who can say I won't be the same when the heat is on.
So all that considered, aren't I looking for something that perserves value rather than preserves a connection to someplace I have no intention of returning to (to live at least)? Then if we kick out the emotional side of it we probably have a better chance of coming to a conclusion. The reason I bought property in the UK after leaving was exactly that kind of emotional response.
Ok. So we have those emotional responses. Does that make it wrong to have property? Of course not. But I prefer to see it purely as an investment. If I could reliably get that 9.75% (call it 10) there is no way I would leave 5m baht sitting in bricks and mortar. That is simply because
the 500k baht return is more than the rent (and other costs) I would save by buying a property with it. Part of the reason is that rents in HH are relatively depressed - probably closer to 5% than 10% and partly because I keep the option of liquidity.
Had enough of the trolls. Going to sleep. I may be some time....