I have a 1258 point reservation for that city pair booked long ago. I don't recall what the cash fare was but the base fare must have been $17.47.
Thanks! Looks to me like the fares you found this morning are the best values - by any calculation - that we've seen from WN in a long time. I don't think I'd have even noticed it otherwise, but I'll be making a point of checking both cash and points for awhile to see if it spreads.