As someone who played each demo version, I was really expecting a different pace in the final game. I was surprised to find that the release version was just as feast-or-famine. Most runs only get a few extra cards or extra stamps unless you get jokers that seriously accelerate the rate. I was expecting the game to have more of an RPG curve to it where I would have more time to shift toward a suit and preferred card quantity.
There was a green mount similar to this one they added in BFA for a large sum of gold. But they claimed to dislike how it encouraged so many people to play the market and removed it.