Based on the return I'm getting on those flights of 2c per point, I am getting 5.4% on the money without any DIRT due, it feels like a no brainer to me. Top instant access interest rates of less than 1.5% after DIRT from what I can see. I'd welcome another perspective on this.
RevPoints or interest on a deposit account, it doesn’t matter what % return you’re getting if you’re spending the growth and allowing inflation to eat away at the value of your lump sum vs your target, which is a house. I think you need to adjust your thinking on this. Now, if you’re replacing the foregone interest by adding ~€2k a year to your savings, but getting €4k worth of flights/hotels from your RevPoints then yeah, I get that alright.