“If you can get an interest only loan at a fixed rate for a longer term (eg. 10-30 years),”
I tend to agree with this at least nearer to the 30 year term. The mortgage ammount should be practically meaningless by then and having a fixed principal payment should beat rent at some point no matter the market at loan inception date. I have not heard of a loan like a 20 or 30 year I/O. Has anyone? Maybe its the next great thing? Hey how about 50 you could just die in the house.
It would be better to start the 30 year or longer I/O after the market corrects though.