To all the dummies that will respond you don't NEED to spend money or you have to choose what to spend money on, no kidding people learn that when they're 12. Some people want/like to spend money on the game.
What in the world is going on with all the money events happening at one time? Progressive Island that many people were spending gems on because Stake looks like quite a monster.
Couple days after that Nemesis week-go buy those chests so you can try and complete your Nemesis for the survival dungeon. Spend those gems/cells/elementium to get that crucial rank up right away.
Couple days after that, hope you saved some gems for Monster Week and get some eggs to rank your Kihaku or what ever you're working on.
It would be nice if there was a calendar for these events or at least release them all at the same time so we can decide what we want to spend money/gems on. While you could get many people to spend $20-$50 on these events if they were spaced out a week apart or so, none of those spenders are going to decide to drop $150-$200 in a week.
EDIT: no sooner had I posted this and another gem spender pops up. The Overlord challenge.