Opinions differ, and prices fluctuate, but:
if you pay a mortgage for 20 years, you end up owning a house
if you pay rent for 20 years you don't
so the rent would have to be quite a lot cheaper to make it a good economic proposition. You'd have to persuade yourself that the money you saved by renting could be tucked safely away and would end up being enough to buy a house for cash at the end of 20 years. Almost certainly it wouldn't, even if you could stop yourself spending it on sweets and fizzy drinks.
think of a house as a place to live, and it is a sensible buy. Start to think of it as a get-rich-quick scheme and who knows? House price inflation or collapse only matters if you have more houses than you need. If you have one house, and live in one house, it doesn't matter to you what it's price does. If you sell it you will have to get another, whose price will also have gone up (or down)
If you are an investor, in gold, oil, shares or houses, you should be aware that "timing the market" is just a gamble. Your guess might be lucky or unlucky.
see also
http://www.investorschronicle.co.uk...144f2af8e8/When-will-house-prices-recover.jsp