I assume you are referring to the Sunday Times last week? I thought it was an excellent article with great sample figures. I for one focused for years on clearing the mortgage, when interest rates were falling, and the stockmarket and property market were booming. I now realise how foolish that was, but isn't hindsight great? If we all had two chances, wouldn't we be rich! Anyway, looking forward, it's not just will you beat 2.95% on your investment return that you must consider, but will you beat whatever the interest rate will be in the future. One of the reasons I focused on the mortgage way back then, was fear of a return to high teen interest rates, and also because I couldn't see the other booms coming (damn crystal ball).