Paying points is really about how you identify and measure risk. By paying points now I guaranty myself a lower cost relative to todays circumstances.
By not paying points I have the added liquidity of cash in hand and the potential opportunity of making a far greater return than the tax deductible interest I am paying for the loan.
To say no one is going to get the lowest possible rate is wrong. There are very few people but there are always a handful of people who know how to wiggle the system.