It has probably been this way since chapter 14 was added to the game, but from the moment I hit chapter 14 and needed those sentient goods, Shrooms have always been massively less available for trade on Arendyll. Sure, I still got my goods when I needed them, by posting extra of my goods to get them, but at the times of day I check the Trader, almost no one is ever offering them. Or the trades get taken within minutes of being posted.
I just wonder if the pattern they have started with the Coldfire Phoenix giving one tier 4 sentient, and the leaks about the May event evolving building giving another tier 4 sentient, if that means we will eventually get evolving buildings that give the tier 6 sentient goods also?
Now, back to what this thread is about, the randomness of winning buildings from chests is making me tired. Ever since the Spire was added, I have cleared the first floor almost every week, and cleared the second floor at least 75% of the time. I have one a total of one Magic Residence and zero Magic Workshops, but I have won seven Libraries. I know it goes the opposite for other players too. Before my girlfriend had to stop playing, she had won five residences and zero libraries.