That "best-case" is unrealistically favorable to the 1970s buyer. In 2020, you can almost get that zero interest mortgage. In the 1970s, you are going to be pay

That "best-case" is unrealistically favorable to the 1970s buyer. In 2020, you can almost get that zero interest mortgage. In the 1970s, you are going to be paying at least 10% on top of that.