There was a discussion a few months ago on the EK forum where someone was arguing that anyone who used their miles for anything other than upgrade was stupid. That person was bading it purely on the cash equivalent snd not the value to the individual. I'm saving my miles so that we can afford to turn one of my business trips into a family holiday we wouldn't otherwise be able to afford but if my ticket is paid for by work and we get one redemption ticket then the cost of two more tickets makes the holiday achievable. Only you know what something is worth to you and thst should be the basis for ypur decision.