The Hidden Mechanics

Paragraph 1. There are three critical factors to consider. First, the time value of money dictates that upfront costs must be amortized over your holding period. Second, opportunity cost: capital deployed into housing is capital not deployed into higher-yielding equities. Third, liquidity risk: real estate is a highly illiquid asset class.

Paragraph 2. Many borrowers fixate entirely on the interest rate, completely ignoring the amortization schedule and the total interest paid over the lifecycle of the loan. A 30-year term mathematically front-loads interest payments, meaning that in the first 5 to 7 years, the vast majority of your monthly payment goes directly to the bank's profit margin, not your principal.

Paragraph 3. By enforcing a competitive bidding process, borrowers frequently save between 0.25% and 0.50% on their interest rate, or thousands in origination fees.