"Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached." -Manuel II Paleologus
Unless you bought at an inflated priced fueled by money that interest-only ARM's put into the hands of people who cannot afford those prices.
Then, even if you have cash in the bank to purchase a house outright, you are getting poor value as the price is being artificially elevated by the irresponsibility of others.
If you won't live it in long enough to enjoy it, its better to just pay the interest until you sell.
However, the artificially inflated prices are making it impossible for many people to afford the payments on a fixed mortgage when the people bidding against you are getting easy money from interest-only loans.
The choice for new buyers is now either a risky interest-only loans with low monthly payments (until it blows up in your face and drives you to foreclosure) , a conventional loan with prohibitively high monthly payment or, as buyers are now doing, saying "No" to prices that they can only afford by putting themselves in either one of those two bad financial positions.
Once the interest-only grace periods begin to expire by the tens of thousands, the foreclosures will begin and the seller will have the choice of either losing money or bankruptcy.