In our corner of the world, it is cheaper for many people to buy then rent, if they have the requisite down payment (minimum 5%). That is due to the fact that rental properties are in short supply.
We don't have access to mortgages with terms of 25 or 30 years here - 5 years is as long as the government mortgage insurance programs will cover. We use approximately the same 25 - 30 year amortization periods (the interest compounding is calculated slightly differently).
The current competitive mortgage market makes it relatively easy to get a 3% rate on your 5 year term, 25 year amortization fixed mortgages.