Earlier I wrote that Delta appeared to be having an unannounced award sale. Now they’ve announced it (HT: skdelta in the comments).
Of course the very idea of a ‘sale’ suggests that there are ‘regular prices’. We know that there are, Delta has inventory buckets and those buckets correspond to price charts. Despite Delta’s protestations to the contrary that prices are simply quoted at will, we know that all Delta has done is removed their award charts from public view in order to ensure members have less information. An uneducated consumer is SkyMiles’ best friend.