Well I was thinking along the lines that if you need, say, 8000 Avios for a redemption at the end of the year, then it’s definitely worth buying these packets. Otherwise, I seriously doubt the way I am behaving at the moment, with this speculative purchasing, that it is a good way to go forward. A decent blog such as Headforpoints would advise you to only buy these if you have a potential redemption in mind. Same with hotel points, and I am buying speculatively there too, irrespective of devaluations.