catpower1980: As some kind of "novelty", the Humble Bundle has started a new format with the Humble Monthly Bundle which is the equivalent of a digital Lootcrate....
So you subscribe for 12$/month and you'll receive some "surprise" digital games (mostly on Steam):
https://www.humblebundle.com/monthly EDIT: if you prefer physical stuff for a "real" plus-value, let's rememeber that the monthly Indiebox exists:
https://theindiebox.com/
Well, when European trade resumed on a significant scale, in the XVth century, it seeems the practice to sell pigs in a bag and to abuse the buyer by putting a sick or dead cat instead was sufficiently common to have generated common sense ( to buy a pig in a poke, acheter un chat dans un sac or Παίρνω γουρούνι στο σακί , the results is always the same )