One thing about a mortgage - by the time you actually own the house, you may have paid double or triple the cost of the hosue. That is the interest the back collects while loaning you money.
One MAJOR advantage is that if a mortage is fixed the amount paid monthly never changes whereas a rent payment willl almost always increase yearly.
If you get a mortgage today and pay $1200 a month, that's the price you will pay for the next 30 years (on a 30 year mortgage). While renting is probably cheaper right now, I can guarantee you that a rent payment of $800 a month will increase substantially over the next 30 years, easily surpassing the mortgage payment.
Then, in 30 years when the mortgage is paid, there is no more mortgage payment but the renter continues to pay rent.
Yes, in all the discussions above, I have not factored in homeowners insurance or property taxes. Let's not forget maintenance also. But even with all these expenses, there is almost no doubt in a normal market owning a home is, by far, a less expensive alternative to renting.
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Armand