One more point about fixed-rate mortgages

They seem to be safer. From the Mortgage Bankers Association of America:

On a seasonally adjusted basis, the delinquency rate stood at 6.17 percent for prime fixed loans, 13.52 percent for prime ARM loans, 25.69 percent for subprime fixed loans, 29.09 percent for subprime ARM loans, 13.15 percent for FHA loans, and 7.96 percent for VA loans. On a non-seasonally adjusted basis, the delinquency rate fell for all loan types.

The foreclosure starts rate increased for all loan types with the exception of subprime loans. The foreclosure starts rate increased six basis points for prime fixed loans to 0.69 percent, 17 basis points for prime ARM loans to 2.29 percent, 18 basis points for FHA loans to 1.46 percent, and eight basis points for VA loans to 0.89 percent. For subprime fixed loans, the rate decreased nine basis points to 2.64 percent and for subprime ARM loans the rate decreased 39 basis points to 4.32 percent.

Some of this may just be that people who take less risk select themselves into fixed-rate loans, but even so....