Well, in the end I didn’t buy anything.
I was close several times, and I did a last minute scour of my wishlist… but ultimately I decided that for everything I was considering buying I already had something similar unplayed, or the price would drop further before I got around to playing it.
Interestingly, the recent mass of Epic Giveaways was probably a factor, as a couple of the games I might have bought were either already given away, or something similar was.
(Eg: Was gonna buy Overcooked or a similar co-op game, but got given Overcooked).
Better luck next time steam!