If you bought an $85,000 home in 1980 with 20% down payment and an average interest rate for that decade of 12.7%, your payment would be the approximately the same as it would be for a $200,000 home at today's rates hovering around 3.5%.
Your principal and interest payment for the $85,000 home at 12.5% in the 1980s would be $900. The total cost over 30 years would be $326,000 with $241,000 in total interest paid.
Your principal and interest payment for a $200,000 home at 3.5% today would also be $900. The total cost over 30 years would be $323,000 with $123,000 in total interest paid.
Pretty amazing, if you ask me.