Unlike you, I am married and have a little one. But I agree completely -- miles are miles, and dollars are dollars. The only difference between now and when I was single is that I need more of both to have any fun!!!

As for her contribution on the domestic redemption side of the coin -- yes, there can be some value there. But her and other bloggers continued defense of 'everybody has different valuations on miles, and that's OK so don't judge me' is often just bad advice. Ignoring sign-up category bonuses, and assuming a typical card that earns 1 mile per dollar spent, you really need to be redeeming above 2cpm or else you would have been better to get the Fidelity card that offers 2% back. This is why most bloggers focus on premium cabins -- if you aren't flying premium cabins, you really need to think about how you earn your miles!