Doesn't seem too valuable based off of the sentiment. Most are trying to sell their Holiday cards for profit instead of collecting. Seems more like a shitcoin money printing event for Cardsmiths Currency.
Cardsmiths was a bit sneaky in that they used Series 1 and 2 characters in the holiday release. This causes the hodlers to want them to complete their sets. For 1/1s collectors have paid several thousands of dollars. So a #d/3, they may have no problem shelling out 750+ I'm guessing.