[jrockway]

Mortgage debt shouldn't prevent you from sleeping at night. You can live inside your investment, and the purchasing power of the money you borrowed just decreases over time. The way you go astray is to take on too much debt (everyone buys way too much house) or to choose exotic loan products that sound cheap today, but aren't. (2008 seemed to kill most of those off.)

As with anything, approach it rationally. Is there a home you want to buy, and can you put 20% down today, and can you afford the monthly payments + property taxes + insurance + random repairs that you'll have to make? If so, it's not a bad investment; after all, you have to live somewhere. As with any investment, there is some risk. Your neighborhood could become bad. The entire house could be supported only by dead termites. But most of the time, the horror scenarios you read about don't happen; you enjoy living there, and sell it some years down the road for well more than you paid into the loan. It's worth considering over pure investment vehicles; you can't live in an ETF, and there are no tax breaks.