IMHO, it is better to use up 3200 SkyPesos for a "free" one year sub to the Economist--which seems to be getting more and more strident in its defense of what it calls "free markets."
My free market approach is to use up rather worthless Delta Pesos for the Economist and save cash for other uses.
So far, I figure I have enough SkyPesos to keep my Economist sub going until around 2180!
