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Depends on how many points you have - I get around 500K points per annum just from credit cards, and about another 60K points for actual flights. I don't actually have the time - at the moment - to use the points, which means my actual points balance is well up over the million mark.
If I was to drop back below Gold, I would consider using points for QC membership. I would have to weigh it up with prospective travel first though.