I did 3 full Royal Jelly Palace Mission runs today and the mission report thing at the end only reported a gain of 2.2-2.6k cr each time. I was then invited to a D14 Arena + RJP and I gained 5.2k cr. I'm fairly sure that the Arena alone did not make the 3k difference in crowns, and I recall getting 3-3.5k crowns from RJP alone. Has anyone else noticed this disparity? I also only got around 1.2k from the Snarbolax mission and about 2k from the Roarmulus mission.
If the missions do indeed reward fewer crowns, then the Arcade would still be worth visiting.
I'm pretty sure it's only the JK mission.
The Sovereign Slime:
D14 Garden of Goo > D15 Red Carpet Runaround > D16 Battle Royale
Royal Jelly Palace:
D14 ??? > D15 Garden of Goo > D16 Red Carpet Runaround > D17 Battle Royale
Ignoring the random level, you make less crowns in the mission because all the jelly palace levels were bumped back a depth.