So, based on the rent thread, I made an own/rent calculator
docs.google.com
docs.google.com
Let me know if you see any issues. Feel free to copy and correct or modify, or to play with. It was originally made in excel.
It is notable that for my $2700 rent and a barely equivalent 700k house I was looking at, with 3% inflation and 5% total for both housing, rent and stock market growth; if you never move, you "break even" with the renter after 41 years. Of course, if you sell you break even very quickly, but then you have to live somewhere, so you go back to the same chart, or move to Vegas.
we paid off our 25 year mortgage 10 years early by adding what we could afford to the required payment eaxh month. If one adopts this strategy early in the repayment life it makes huge savings later..
sorry if this is not addressing the core question :)
nice work!!!